Harry Styles was among the stars at Warner Music Group's big summer party last night (17.07.14).
The 20-year-old heartthrob took a break from One Direction's sell-out 'Where We Are' stadium world tour to sip cocktails at the lavish party, held in association with British GQ magazine, at Shoreditch House in trendy east London.
Harry and other A-list guests enjoyed music-themed cocktails including the Parlophone Punch, Atlantic Breeze and Warner Spritz.
Other stars who attended the lavish bash included former Girls Aloud star Nicola Roberts, who wore a striking halter-neck red dress, Conor Maynard, Rudimental and Amber Le Bon.
Harry was recently praised for his songwriting skills by US songbird Ariana Grande, for whom he penned a track called 'A Little Bit of Your Heart'.
She said: "I was at the studio one day and he was there, and literally, [songwriters] Johan [Carlsson] and Savan [Kotecha] were like, 'Hey, do you want to write something for Ariana?' And he was like, 'Sure, mate.' And he just did.
"It's a beautiful song. He's an amazing writer. It's really beautiful. He's amazingly talented."

Nina Dobrev tries to be good to everyone including her exes.
The 25-year-old actress likes to be positive and treat people well even if she has been through a bitter break-up with them.
She told Nylon magazine: "I don't like any kind of negativity.
"I try to be good to everyone, whether it's a love, a friend, an ex. I'll always try to treat people the way I want to be treated."
Nina's 'Vampire Diaries' co-star and ex-boyfriend Ian Somerhalder agrees that she's good at practicing what she preaches.
He joked: "She always lets me have the last fry."
The actress' love life is never without speculation and she has recently been linked to fellow actor James Marsden after the pair were spotted kissing "in a corner" at a karaoke bar in New Orleans.
A source told the American edition of OK! magazine: "[There was] more kissing than singing."
The stars reportedly left the bar together at 3am, before jumping in a taxi and passionately locking lips again.
A source told HollywoodLife.com: "Nina thinks James is hot. They have met before and they did hook up and had a great time. It was a fun night of drinking and hooking up on Bourbon Street."

Cher Lloyd has defended Cheryl Cole's choice to marry her boyfriend of three months.
The 'Crazy Stupid Love' singer wed her French beau Jean-Bernard Fernandez-Versini in a private ceremony on the Caribbean island of Mustique earlier this month and Cher - who married long-term boyfriend Craig Monk last year - believes thinks it's "amazing" her former 'X Factor' mentor has found love again.
Speaking on Birmingham's Free Radio, Cher said: "I'm really happy for her. There is no reason for anyone not to be happy for her. I have been looking at Twitter a lot and a lot of people are saying, 'Oh, three months this and three months that.'
"You can't put a time on anything and people should realise you only have one life and you don't know what is going to happen to you.
"So I feel that it's amazing for her to be able to do that, and fingers crossed she has little babies. She is going to have beautiful children."
The 20-year-old singer also offered Cheryl, 31, marital advice, cautioning the singer to "pick her battles" with Jean-Bernard.
She said: "One of the things I have learned is pick your battles. If he's left a wet towel on the bed, pick it up and remove it yourself. There is no point going over the same thing again and again, because he won't listen. He will not remember to not put a wet towel on the bed.
"But then in other situations where he's really hacked you off, that's your battle that you pick. That's something that I do."

David Beckham's kids branded him "super old" when he told them about his Legend Award.
The 39-year-old retired soccer star - who has sons Brooklyn, 15, Romeo, 11, and Cruz, nine, and two-year-old daughter Harper with Victoria Beckham - was bestowed with the accolade at the first ever Nickelodeon Kids' Choice Sports Awards last night (17.07.14) but he admits news of his prize was met with a funny reaction from his offspring.
Quizzed about their response, he said: "Super amazing! One of them said [I was] super old, so that made me laugh today. But I like to think they think I am amazing."
David - who was covered in golden slime as he accepted his award - also expressed how much his new accolade means to him, especially as it's voted for by children.
He explained to 'Access Hollywood': "It means a lot because obviously I have come to the end of my career as a soccer player - a 22-year career - and at the end of your career it's nice to still receive awards, especially when it's from kids.
"When kids vote for you ... kids are very honest, I know that, I have four myself, so when you receive an award it means a lot."

Nick Cannon wants his children to become nuclear scientists.
The 'America's Got Talent' host - who is married to singer Mariah Carey - insists that he "never" wants his three-year-old twins, Moroccan and Monroe, to follow in their famous parents' footsteps and hopes they seek a more grounded profession.
He said: "I don't want my kids to be on TV, that's the only thing [I don't want them to do].
"I just want them to shoot for something else, because it's already in them - like, if you wanna act, be in the school choir. [And] if you wanna sing, be in the school choir.
"A nuclear scientist - can I get one of those? Can I get a heart surgeon in the family?"
Despite his feelings on TV, Nick remains a huge fan of popular reality show 'America's Got Talent', which he has been presenting over the summer.
Nick believes the programme is good "family fun" and that's why it has outlasted so many rival shows.
He told 'Access Hollywood': "To be able to turn on the television for two hours and just relax and have fun with your family, that's what it's all about."

Britain's Prince William has paid tribute to the victims of the Malaysian air crash.
The 31-year-old royal said his "thoughts and prayers" go out to the families of the 298 people killed in the tragic incident yesterday (17.07.14), which saw flight MH17 crash in Ukraine after taking off from Amsterdam.
Speaking during the unveiling of a statue to the first man to identify Australia as a continent, he said at Australia House in London today (18.07.14): "I know that I speak for all of us here when I acknowledge our deep sadness following yesterday's disaster in the Ukraine. For all of us who have lost fellow countrymen and women in the tragedy, words cannot do justice to our sense of loss."
The crash - which has killed at least six Britons - comes just four months after Malaysian Airlines flight MH370 disappeared en route from Kuala Lumpar to Beijing on March 4, with 239 people suspected to be dead.
The prince added: "The crash is a particularly cruel tragedy coming so soon after the loss of MH370.
"Please be assured of my family's thoughts and prayers at this time."

Nicole Scherzinger says Beyonce is "a great hugger".
The former Pussycat Doll has praised her fellow singer, describing the 'Drunk in Love' hitmaker as an inspiration and revealing she "gives good" cuddles.
She said: "She's no stranger, we all know her, we all love her. I'm inspired by her in every way as a singer, as a performer, as a woman, very empowering.
"And she's a great hugger as well, gives good hugs."
Meanwhile Nicole also paid tribute to 'Purple Rain' star Prince and called her friend a "great mentor" as she explained what the pop icon means to her.
She added: "He is one of my favourite artists ever, I think most of the world can agree. And he's one of my favourite humans. A very good friend of mine.
"I've learnt so much from him, a great mentor, and I'm just inspired by every single one of his shows.
"I think I saw his last show recently here in London at Electric Ballroom. Probably the greatest performer I've ever seen."
Prince isn't her only idol from the past, though, as she described Janet Jackson's song 'Love Will Never Do (Without You)' as a direct inspiration for her own track 'Your Love'.
She explained: "This woman, although this song is a bit of a throwback, this song and video actually inspired my newest video and single 'Your Love'.
"This video I believe is the first video that Herb Ritts actually directed. It's a beautiful, classic video. It's timeless, and it just made me fall in love with Janet Jackson all over again."
Nicole Scherzinger was speaking to music streaming service blinkbox music.
For more information on the service please visit blinkboxmusic.com.

Sir Paul McCartney says he'll retire when he "feels like it".
The 'Hey Jude' singer has had an iconic career, but he insisted he is constantly learning new skills, which means he has no plans to call it quits just yet.
The rocker has recalled an early show when The Beatles were still known as the Quarrymen, and he messed up his big moment as he stepped forward to take on lead guitar duties.
He told Rolling Stone magazine: "I don't even think we were The Beatles, it was the Quarrymen ... and I had a lead solo in one of the songs and I totally froze when my moment came.
"I really played the crappiest solo ever. I said, 'That's it. I'm never going to play lead guitar again'. It was just too nerve-wracking onstage.
"So for years, I just became rhythm guitar and bass player and played a bit of piano, do a bit of this, that and the other. But nowadays, I play lead guitar, and that's the thing that draws me forward. I enjoy it. So, yeah, that means the answer to 'Are you going to retire?' is 'When I feel like it'. But that's not today."
Paul, 72, admitted he was once told by a manager he should retire when he was 50, but he quickly dismissed the idea - and has now claimed The Rolling Stones prove why he can keep going.
He added: "I thought about it for a second and thought, 'Nah'. When will you give up? When will it give out? Who knows? But the margin has been stretched these days.
"The Stones go out now, and I go to their show and I think, 'It doesn't matter that they're old gits. They can play great'. And I talk to young kids who say exactly the same thing: 'They play good.' "

Blondie's current world tour could be their last.
The iconic rock band's drummer Clem Burke, 58, has admitted the group's frontwoman Debbie Harry, 69, "has hinted it could be time" for the 'Maria' hitmakers.
He told The Province newspaper: "By the time we get to beautiful Vancouver, we will have toured Europe, played Glastonbury and done a number of big festivals in North America.
"As for the rumours of the last tour, we've decided we'll live forever. But Debbie, is older than me and has hinted it could be time. Obviously without her, there is no Blondie."
The group's legendary singer opened up about their latest album 'Ghosts of Download' - which was released in May - and admitted it has been a breath of "fresh air", while urging other stars to try new things instead of simply playing it safe.
She said: "I'm excited because I love the new stuff. It's always a chance to breathe fresh air. It's good for artists to step out of their comfort zone."
Debbie forged her own solo career following the band's split in 1982, and started using her full name - Deborah Harry - after her third album because she wanted to have her own identity.
She previously admitted: "That's my proper name and I was trying to, as you say, draw a line in the sand between the Blondie identification and me as a solo artist.
"I think I was often confronted by the record company saying, 'Why can't you use the name Blondie?' Well, I'd like to use the name Blondie, but it's not Blondie, it's me."

The 'Big Bang Theory' stars have demanded a payrise. The cast of the CBS hit show have reportedly refused to sign their contracts for the upcoming season until bosses agree to pay them $1 million per episode. Jim Parsons, Johnny Galecki, Kaley Cuoco...

'Hollyoaks' has been named the most violent soap on British television.
The channel 4 show - which airs at 6:30pm weekdays - has beaten 'EastEnders' to the title after it had 11.5 violent scenes per hour last year in comparison to the BBC One programme's 2.1, according to Ofcom.
The soap - which is currently following a domestic abuse and rape storyline - has even overtaken ITV's 'Coronation Street', which has remained steady at three violent scenes per hour, as well as 'Emmerdale's four.
The show was hit with criticisms from Ofcom last year and was branded too "violent and shocking" for pre-watershed viewing after a character was pushed under a train in a disturbing scene in August 2013.
A Channel 4 spokesman said: "We are committed to ensuring all 'Hollyoaks' storylines are appropriate for a pre-watershed audience. The portrayal of violence is appropriately limited and is shown within the context of long-running storyline. Programmes that include scenes which some people may find upsetting are clearly flagged to viewers at the beginning of the broadcast."
Meanwhile, the study, called Violence in UK Soaps, has also found that the 9pm watershed was key in the viewers' attitudes towards violence and victims.
A spokesman for Ofcom said: "Viewers were prepared to tolerate moderately violent scenes before the watershed; however, all agreed that strong scenes with a vulnerable victim were unacceptable before 9pm."

Marvin and Rochelle Humes have been branded "too insincere and too stupid" to present 'This Morning'.
The couple are filling in for Holly Willoughby and Phillip Schofield every Friday throughout the summer, but their hosting skills on the popular ITV show today (18.07.14) didn't go down too well with the viewers.
One fan, Lori Looker, took to her Twitter account to vent her frustration at the stand-in hosts, tweeting: "Marvin and Rochelle are both too insincere and too stupid to present 'This Morning.' "
Another viewer, Maria, wrote: "Urgh who's idea was it to put Marvin and Rochelle on this morning? They really aren't very good, despite the fact they think they are!"
Sally Watson added: "Marvin and rochelle are so nervous and awkward on @itvthismorning."
However, other viewers jumped to the duo's defence on the social networking site and praised them on their new role on the daytime TV show.
Beth King tweeted: "I love Rochelle and Marvin on 'This Morning'."
Laura Wright added: "Rochelle and Marvin Humes are one of my favourite couples."
Meanwhile, Marvin and Rochelle, who have 14-month-old daughter Alaia-Mai together, have split their hosting duties with Ruth Langsford and Eamonn Holmes, who cover for Holly and Phil from Monday to Thursday.
It was announced recently Amanda Holden and Christine Bleakley will stand in for Holly when she goes on maternity leave later this year to have her third child.