Taylor Swift was joined on stage by Emeli Sande at London's O2 Arena last night (10.02.14).
The country starlet surprised fans on her 'Red' tour as the pair launched into a rendition of Emeili's hit 'Next To Me' and Taylor described the singer as "heavenly."
She told the crowd: "I was thinking about playing the O2 and the last time I played it. Do you remember the BRIT Awards last year? I had a great time and I got to meet one of my favourite artists and I watched her clean up at the BRIT Awards. Then I got this idea she could come out and play for you. So what do you think about Emeli Sande coming out to play a song for you tonight?"
The 23-year-old beauty looked emotional as she took to the piano to play 'All Too Well' and tore through a number of other hits before performing 'We Are Never Ever Getting Back Together'.
After the gig, Taylor took to Twitter to thank her fans and Emeli, she wrote: 'Tonight @emelisande surprised our London crowd with 'Next to Me'!! SHE IS SO HEAVENLY. I've had the best time here. Last show tomorrow....'
Taylor is currently performing the UK leg of her 'Red' Tour and her last gig will be tonight held again at the O2 Arena in London.
To coincide with her residency at the venue, the British Music Experience - which is situated inside the O2 - are showcasing select items from Taylor's wardrobe alongside photographs by Christie Goodwin in a pop-up exhibition.
Admission to 'Taylor Swift: A Photo Experience' is included within the price of a museum ticket, and costs just £4 to ticket holders for her O2 shows during the duration of her residency.
The exhibition runs until 23 March.

Sandra Bullock enjoyed "one of the best filming experiences" ever while making 'Gravity'.
The 49-year-old actress, who has been nominated for an Oscar Award for female lead Dr. Ryan Stone in the sci-fi thriller, admits that she enjoyed working on Alfonso Cuarón's latest film because of the support she received.
Speaking at the annual Academy Awards Nominees Luncheon in Beverly Hills yesterday (10.02.14), she said: "I worked with the nicest, kindest, most patient group of people who all had a tremendous amount riding on them because of new technology, unknown waters.
"It should have been a very stressful situation, but everybody was so supportive that I had one of the best filming experiences I've ever had."
Cate Blanchett, who has also been nominated for Best Actress for 'Blue Jasmine', stars as trophy wife Jeanette Francis, known as Jasmine in the film and confessed she wasn't able to keep any of the designer outfits which she wore on set.
She said: "They [the outfits] all had to go back at midnight. I think the entire costume budget was less than the Hermes bag, which was also borrowed."
Amy Adams, who is nominated for 'American Hustle', is anticipating the award ceremony which will take place on March 2 at the Dolby Theatre in Hollywood and insists she'd like to dress to accommodate her own style when she attends the bash.
She added: "Sometimes I feel like I am dressing in costume on the red carpet, and this year I want to feel like myself. So I guarantee when I am on the red carpet this year, you can know that's a dress I would wear. It's not a character's dress."

Helen Flanagan is expecting a proposal on Valentine's Day (14.02.14).
The former 'Coronation Street' actress is hoping her footballer boyfriend, Scott Sinclair, 24, will finally pop the question on the most romantic day of the year as part of their plans to start a family as a married couple.
A source told the Daily Star newspaper: "Helen is desperate to have a baby but she wants to be sure that Scott is committed to her first. She'd like to be married before having kids, especially as her mum doesn't want her to have a baby out of wedlock."
It's thought the pressure is on for Scott to prove his commitment to Helen - following their bitter breakup last year after the West Bromwich midfielder allegedly cheated on her - and he is ready to tie the knot sooner rather than later.
The insider explained: "Hel told Scott she wants to be pregnant before the end of the year so the pressure is on. He isn't really that bothered about marriage but he knows how much it means to her and is ready to step up."
If Scott decides to pop the question, he won't be left disappointed with insiders claiming Helen, 23, wouldn't turn down his offer.
A source added: "It's safe to say there's little to no chance she'd refuse, especially on Valentine's Day."

Davina McCall has had "dark moments" while she battles to complete her seven-day Sport Relief challenge.
The 46-year-old TV presenter is in the midst of a gruelling 500 mile triathlon for the charity - which will see her cycling, running and swimming from Edinburgh to London - and she admits there are times throughout the day where she fears she can't go on.
She told The Sun newspaper: "I have moments where I go dark and I feel very hopeless and I feel like I can't go on but different people pick me up at different times.
"I feel like I am being carried through this challenge but it has been pretty hard.
"There are three or four times a day when I think I have got to stop and I don't think I can finish it."
The brunette beauty collapsed yesterday (10.02.14) due to suspected hypothermia after she completed swimming the length of Lake Windermere.
Davina's husband Matthew Robertson rushed to her side after hearing the news she'd been knocked unconscious and managed to boost her morale.
Davina explained: "What's amazing is that Matthew saw how the swim went and spoke to my mum and dad who are here with me and said, 'I am driving up there.'
"I was so unbelievably pleased to see him. He has picked me up and given me a huge buzz."
The 'Got to Dance' host recovered quickly with the help of a hot beverage and some food and hopped on her bike for the next leg of her challenge.

Jasmine Waltz and Lee Ryan want to start a family.
The 'Celebrity Big Brother' couple might have only left the house a few weeks ago, but they have already talked about marriage and having kids together.
The American socialite told Britain's OK! magazine: "I've always wanted a big family but have never met the right guy. But Lee figures in that vision now. I'd like to have a big belly in a year. A fat belly, a fat ring and a fat house.
"I want a big family and want it to be solid. I want a bunch of kids. I'd definitely like to adopt, too, and bring someone into a home who didn't think there was much hope."
Lee agreed: "That would be ideal. The [Big Brother] house seems like ages ago now. We're just planning on building our lives together."
The Blue singer caused controversy by romancing both the brunette beauty and glamour model Casey Batchelor during his time on the fly-on-the-wall Channel 5 show, but Jasmine insists Lee didn't "betray" her by seducing Casey.
She said: "I trust him more than anything. I don't feel betrayed, I know the situation he was in. I don't think he did anything wrong aside from one little kiss in the bathroom, but was being manipulated and Casey was pretty keen."

Jared Leto's mother taught him to "dream".
The 'Dallas Buyers Club' actor - whose parents divorced when he was young, with his father dying while he was still a child - credits his mom Constance for his success because she always encouraged him to do whatever he could to reach his goals.
And Jared - whose performance in 'Dallas Buyers Club' as transgender AIDS victim Rayon has seen him win a string of awards - has been accompanied to many ceremonies this year by his mother as a way of thanking her for her support.
Speaking at the Academy Awards Nominees Luncheon at the Beverly Hilton Hotel in Beverly Hills yesterday (10.02.14), Jared - who is nominated for Best Supporting Actor - said: "We were born very poor and into pretty humble surroundings. My mother always wanted to do something better with her life and for her children.
"She was a dreamer and a worker. The biggest lesson she taught me was to dream and then to do the work that it takes to make dreams a reality. It has been fun to bring her around.
"The best part of these opportunities to stand up and say something is to be able to thank the people who have believed in you for so long. I could spend every single one of these events thanking my mother. She's the best."
The 42-year-old star donned an eye-catching gold jacket for the occasion and admitted he likes to have "fun" with his wardrobe at formal events so he still feels like himself.
The 30 Seconds to Mars frontman added: "I don't dress up very much. I don't wear a lot of suits or sports jackets, but you have to have a little fun with it and you want to feel like yourself. Not like your agent."

Holly Willoughby and David Beckham have been voted Britain's dream Valentine's Day dates. The 'This Morning' presenter has topped a poll of celebrity beauties most British men would love to share a date with on February 14, while retired soccer star D...

Kanye West feels "honoured and humbled" by his fans.
The 'Bound 2' rapper released his debut album 'The College Dropout' 10 years ago yesterday (10.02.14) and he admits he's overwhelmed by the dedication of his supporters over the decade.
Taking to Twitter to mark the 10th anniversary, he said: "I am honored and humbled by my fans, for the unwavering support and love over the past ten years.
"I wake up every day trying to give something back to you that you can rock to and be proud of.
"Ten years later I am still the same kid from Chicago, still dreaming out loud, still banging on the door.
"The doors may be heavier, but I promise you WE WILL BREAK THEM. (sic)"
The 36-year-old star- who has won a total of 21 Grammy Awards - recognised the struggle he'd been through over the years to prove himself as a serious rapper and credits the team behind him for helping him become a success.
He wrote: "Ten years ago today we finally released what had been my life's work up to that point: The College Dropout.
"I say "finally" because it was a long road, a constant struggle, and a true labor of love to not only convince my peers and the public that I could be an artist, but to actually get that art out for the world to hear.
"I am extremely grateful to each and every person along that road who helped, lent an ear, lent their voice,
"gave of their heart to that project, and to all the projects that followed, and are to come. (sic)"
Kanye's fiancée Kim Kardashian - with who he has eight-month-old daughter North - also took to her Instagram account to praise the "best producer and artist over the past decade".

Bill Murray learnt Japanese by practising his chat-up lines in a sushi bar.
The 63-year-old actor decided to get into character during filming of Sofia Coppola's 2003 movie 'Lost In Translation' in Tokyo by buying a cheeky phrase book and testing his flirting skills on the local chef.
Speaking in a fan Q&A on Reddit, he said: "I would go to sushi bars with a book I had called 'Making out in Japanese'. It was a small paperback book, with questions like, 'Can we get into the back seat?' 'Do your parents know about me?' 'Do you have a curfew?'
"And I would say to the sushi chef, 'Do you have a curfew? Do your parents know about us? And can we get into the back seat?'
"And I would always have a lot of fun with that, but that one particular day, he said, 'Would you like some fresh eel?' and I said, 'Yes I would'. So he came back with a fresh eel, a live eel, and then he walked back behind a screen and came back in 10 seconds with a no-longer-alive eel."
The star also recalled the "real fiesta" he had filming 2009 stop-motion animation 'Fantastic Mr. Fox' with the likes of George Clooney and Meryl Streep, claiming the all-star cast once got so drunk they couldn't stay upright.
Bill said: "It was great fun, because it just dragged on and on and on. And it was this fun bunch of people. First we went to our friend's farm, and we all stayed at her place for a handful of days while we recorded during the day and then at night we would have these magnificent meals and we would all tell stories.
"We had a lot of great food, a lot of great wine and great stories. It went on until people started literally falling from their chairs and being taken away.
"And then we had to go to another place and do it again, we went to George's place, but then something happen[ed] and the whole party broke up, and George said, 'You don't have to go, do ya'and I didn't, so we just kicked around Northern Italy for a while. It was a real fiesta."

Miley Cyrus isn't "passionate" about acting.
The 'Wrecking Ball' singer - who shot to fame aged 12 after starring in Disney TV show 'Hannah Montana' - is no longer interested in appearing in movies because she hates having to pretend to be someone else.
She said: "I'm just not passionate about acting, because I don't like to pretend to be somebody I'm actually not.
"Why should I put on strange characters? I prefer to show my true colours as the real Miley Cyrus."
The 21-year-old star also spoke out to demand more "tolerance" in the world and admitted she doesn't understand how discriminatory attitudes are still held in the modern world.
Speaking to Germany's Vogue magazine, she said: "I think a lot about politics. Despite the fact that it's the 21st century and America is so proud of being a free country, sometimes incomprehensible things happen in our society.
"There is racism and discrimination. I fight against that. I demand more tolerance, especially for homosexuals, who of course should be allowed to marry."
Miley went on to encourage people of her age to shed "restrictions" in a quest for "self-fulfillment", though she also acknowledged she is in a different position to most young women.
She said: "I'm not exactly a normal citizen. My profession allows me to run around however I like. Wild outfits or crazy haircuts are not taboo for me. After all, I work in the entertainment business, which I feel is a huge plus, simply because in this profession I can develop freely with no trouble at all.
"I'm also completely convinced that every young person has the right to get free of whatever's restricting them. Which is why I encourage everyone to go for self-fulfillment."

Peter Andre was once stood up on Valentines Day.
The 40-year-old singer - who is engaged to Emily Macdonagh, the mother of his one-month-old daughter Amelia - previously flew out to Paris to celebrate the romantic holiday on February 14 and had plans to meet a special someone, but felt rejected and ended up wallowing in his own misery when his other half didn't turn up.
He confessed to heat magazine: "I went to Paris, flew out there thinking I was going to meet someone, but she didn't turn up.
"I couldn't get hold of her, so I was in Paris on my won, walking past all the restaurants, watching couples and feeling sorry for myself."
Following this bad experience, Peter - who also has children Junior, eight, and Princess, six, with ex-wife Katie Price - has refused to return to the romantic French capital for the romantic day.
He joked: "I found out later that she'd gone out on Valentines with someone else. That was the last time I went to Paris on Valentines Day."
Peter also confessed he is very "cheesy" and admitted he's sent roses, a padded Valentines card and covered a bed in rose petals to impress a woman.
Quizzed on how cheesy he is on a scale on one - 10, he explained: "Eleven plus, probably. I am quite cheesy."

Shirley Temple has died.
The former child actress passed away from natural causes at her home in Woodside, California yesterday (10.02.14) at the age of 85, her agent has confirmed.
Her family said in a statement: "She was surrounded by her family and caregivers.
"We salute her for a life of remarkable achievements as an actor, as a diplomat, and... our beloved mother, grandmother [and] great-grandmother."
Shirley landed her first movie role at the age of three and, in 1935, she became the youngest person to receive an Academy Award - a record she still holds - when she won a special juvenile Oscar aged just six.
She starred in over 43 films - including 'Bright Eyes', 'Stand Up and Cheer' and 'Curly Top' but struggled to maintain her cinematic career in adulthood and retired from movies in 1950, though she continued to work in television.
Following the end of her entertainment career, Shirley served as a U.S. ambassador to Ghana and Czechoslovakia.
The actress married first husband John Agar - the father of her daughter Linda - in 1945 when she was just 17 years old, but they divorced four years later.
She went on to marry Charles Alden Black in 1950 and the couple had children Charles Jr.
and Lori together. The couple were married for 54 years until Charles passed away in August 2005 from complications from a bone marrow disease.