Ellie Goulding is "petrified" of cosmetic surgery.
The 'Burn' hitmaker insists her newly-curvy figure is a result of altering her "obsessive" exercise regime and going vegetarian.
Quizzed on rumours she had a boob job, she said: "I'm petrified of anything like that. My friends will think that's hilarious.
"I ran every day for seven months, maybe too obsessively, and when I stopped I became curvier.
"My boobs look bigger because my waist is smaller. People underestimate how you can shape your body. Since I stopped eating meat and fish, my body is better than ever."
Ellie credits her vegetarian diet for making her feel healthier and more "calm".
She added: "I feel calmer, clean, although I drink and smoke.
"And - touch wood - I never get ill on tour anymore. And it's always hectic."
When she first shot to fame, Ellie suffered from crippling panic attacks, and though she still experiences "psychological chaos", she has learned to cope better.
She told Britain's Glamour magazine: "There's still psychological chaos. But everything you do is about how you react to something. Everything. It's how you respond and I wasn't aware of that before.
"But when you grasp how you can control things, and accept things, you can cope."

Kim Kardashian's nephew didn't want her to hold a party for her daughter at his house.
The 33-year-old star admits Mason, four, was furious about having a Coachella-themed birthday bash for 12-month-old North last month at his mother Kourtney's mansion in Calabasas, California.
Kim told PEOPLE.com: "When I said, 'North's having a birthday party at your house,' Mason said, 'No! I'm having a birthday party at my house! She can never have a party!' "
Kourtney, 35, added: "Before Kim even said we were having it at his house, he said, 'I'm going to put Legos everywhere! I'm going to scare everybody!' "
Kim and Kourtney's sister Khloé, 30, doesn't believe Mason is jealous of North, whose father is Kanye West, but thinks he takes after his "moody" mum.
She said: "He's very moody. He's very Kourtney-like. If he wants to do something he will. If he doesn't, you can't get him to do anything."
However, Kourtney is adamant Mason's temperament comes from his father Scott Disick, 31.
She added: "He might be a little more Scott's personality than mine. He's just the life of the party."
Meanwhile, Khloé insists Kourtney's two-year-old daughter Penelope is "exactly like" the brunette beauty, who is expecting her third child with Scott later this year.
Khloé said: "Penelope likes to observe and figure people out before warming up to them."

Nicole Scherzinger needs regular therapy sessions.
The 36-year-old star, who has battled with bulimia in the past, has meetings with her counsellor over the phone because it helps her deal with her stress levels.
She explained: "I should speak to her more but it's usually when it's a dire emergency, like 'Oh my gosh, I've got so much on my mind. I need some guidance'.
"It's good to get some perspective, get some guidance, and have the weight taken off your shoulders. You feel so much better... and just having somebody to talk to who has no agenda."
The former 'X Factor' judge - who is a devout Catholic - also regularly attends Confession at church because she believes it's another form of self-help for her.
She explained: "For me it has helped. But it is a case of each to their own. With Confession, because of my spiritual relationship with God, it just helps.
"For some people it's meditation, for others prayer, but because I came with my Catholic roots, I feel like it lifts something off of me. It's always good to ask for forgiveness and forgive."
Meanwhile, the American beauty also has her boyfriend Lewis Hamilton, 29, to support her and the loved-up couple, who have been together on/off since 2007, are even considering setting up home together in London.
She told the Daily Mirror newspaper: "I would love to live here. Lewis and I have been talking about getting a place together here and have been looking at places to buy.
"As for [dual] citizenship, yeah, quite possibly, you never know. I mean the taxes are pretty much the same over here as they are in America."

Lea Michele has introduced her boyfriend to her friends.
The 'Glee' actress began dating her new beau Matthew Paetz over a month ago and couldn't wait to show him off to her closest pals at a private house party in Beverly Hills, California, on Wednesday night (09.07.14).
A source told E! News: "Lea was leading the way and she couldn't wait to introduce him to friends. They were talking to people about summer plans and looked like they were totally crazy for one another.
"They look so cute together and so into one another. She clearly really likes him."
The 27-year-old star, who was left devastated when her boyfriend Cory Monteith died of a drugs overdose last year, met Matthew on the set of her 'On My Way' music video a few months ago and the hunk is doing everything in his power to make her happy and support her.
A source said previously: "They have a very honest and open type of relationship. They share everything and support each other in any way possible."
Meanwhile, the duo's budding romance was rocked last month following reports Matthew was a gigolo, who, until recently, offered his companionship to lonely women through online service Cowboys4Angels.
However, the brunette beauty reportedly confronted him over the rumours and he has since insisted he is a certified life coach, dating expert and massage therapist.

Justin Theroux used to "garbage-pick".
The 42-year-old star was forced to dig through the bins looking for food during the 1990s in order to survive as he was a struggling actor living in New York City.
He told the latest issue of Details magazine: "I used to garbage-pick. It sounds much more disgusting than it is. You learn a lot about society by seeing what's thrown away. During the period I was doing that, a lot of great stuff was being tossed."
The hunky actor's profile has rocketed since he began dating 'Friends' actress Jennifer Aniston three years ago, but he admits he never wanted to become famous.
He explained: "There's a huge distinction between wanting to act and wanting to be a famous actor. Most of the people that jump off buses in Hollywood just want to f**ing 'make it.' And I never had that drive. Honestly. I could never visualise myself in that way."
Meanwhile, Justin proposed to Jennifer, 45, on his 41st birthday (10.08.12), but he insists they've got no plans to tie the knot just yet as they are enjoying being engaged.
Asked whether he has any big plans for his 43rd birthday this year, he told 'Good Morning America' yesterday (10.07.14): "This birthday, I think, will be just cakes and, you know, who knows? We'll see. It's hard to top after the proposal. We're also loving the engagement as well."

Billy Bob Thornton thinks he's a "hermit".
The 58-year-old actor admits he rarely goes out to socialise with his friends and insists the next event he'll be attending is the Emmy awards at the end of August.
Speaking to USA Today newspaper, he said: "I don't get out much. The next time I'll be out will be at the Emmys. I'm kind of a hermit. I only have about seven friends."
The hunky star will be attending the event, held in Los Angeles, in the hope of picking up the best actor award after being nominated for his role in 'Fargo', but he admits most of his friends haven't even seen the movie.
He explained: "Most of them have probably never seen 'Fargo'. They're happy for you, too. It's good not just for yourself, but the people around you. It's nice for my mum. She'll be thrilled, and my kids."
Meanwhile, Billy Bob won't be shouting his success from any social networking sites as he insists he doesn't use Facebook and Twitter because he's not an "idiot".
He said previously: "Twitter and Facebook, and all these things, are making people into blithering idiots. I don't use any of that mess. In the '60s we would say 'power to the people' but that's not what we meant."

Lauren Conrad isn't dieting for her wedding.
The former 'The Hills' star is set to marry fiancé William Tell in her native Orange County, California, this summer, but she insists she's not sticking to an extreme eating plan or fitness regime to get in shape for her big day.
Speaking to PEOPLE.com, she said: "I'm not a huge fan of the gym, to be honest. When I have to go to the gym and put an hour in, I'm just staring at the clock. I really love food ... I'm not good at dieting. I try to make smart choices but just eat a little bit less."
The loved-up couple, who got engaged last October, having been dating for over two years, but the blonde beauty admits they still go on regular dates.
She explained: "It's just like any other couple with full-time jobs. You make date night and you have weekends, hopefully. Not [all] weekends, but some weekends. I'm really fortunate in that I get to do things that I love, so it doesn't feel like work. I think if you're doing something you love, it's not a lot. You're excited every day.
"We haven't been to a club together in a very, very long time, if ever. We probably entertain more than we go out, to be honest. I love just having a couple of people over for dinner. It's easier for me. I don't have to wear shoes. Everybody's happy."

Mel Gibson feels sympathy for Shia LaBeouf.
The 58-year-old actor is concerned about the troubled star, who has sparked fears over his mental health after he appeared at a film premiere in Germany with a paper bag on his head earlier this year, and believes he's got some personal issues that need resolving.
Speaking to Indiewire, he said: "When I see someone like Shia LaBeouf with the bag on his head and stuff, my heart goes out to the poor guy. I think he's suffering in some way. Or why would he do that?
"People are inclined to sort of point the finger at him and say like, well, he's this, that, or the other. It's easy to judge. But I'm sure he's going through some kind of personal, very painful, cathartic thing that he has to exorcise and get out there."
Shia is currently receiving treatment for alcohol addiction after he was arrested in New York City last month for allegedly yelling offensive language and slapping people's bottoms during a 'Cabaret' performance.
However, Mel believes the 27-year-old star will sort out his problems and will come back fighting.
He added: "He'll be all right. I actually like the kid. I think he's good."
Meanwhile, Shia is due to appear in court in New York on July 24 after he was charged with harassment, disorderly conduct and criminal trespassing following his bizarre behaviour in Studio 54 theatre.

Angelina Jolie and Brad Pitt are reportedly planning to get married at their house in the south of France.
The couple are yet to set a date for their wedding but are hoping to tie the knot later this year or early next Spring in their future family home, Château Miraval, in front of a small amount of close family and friends.
A source told E! News: "[Brad and Angelina would like a] quiet, meaningful celebration of their love at their future family home ... There'll be no more than 22 guests, which will be close family only. It'll be a lovely celebration to start life in the new house."
The pair were keen to exchange their vows sooner but have had to put the wedding on hold after problems with the renovations at the home, which has led to the delay.
The source explained: "This is Brad's project and Angie has had nothing to do with it. It's all been so stressful and has been such a gigantic headache that she just left him to it. There's still no official date set, but they're at the stage where they can say they'll definitely be married by this time next year."
Angelina, 39, and Brad, 50, first went public with their relationship in April 2005, just four months after Brad's divorce from Jennifer Aniston was finalised.
The loved-up duo went on to get engaged in 2012 and share six children, Maddox, 13, Pax, 10, Zahara, nine, Shiloh, eight, and five-year-old twins Vivienne and Knox.

Billie Faiers has given birth to a baby girl.
The 'Only Was is Essex' star, 24, and her fiancé Greg Shepherd welcomed their daughter - their first child together - into the world today (10.07.14).
The blonde beauty announced the happy news on her Twitter account this afternoon, telling her fans: "We are so excited to announce the birth of our beautiful baby girl ... We are so happy and the proudest mummy and daddy in the world (sic)."
Billie's sister Sam - who left the ITV show last year - was the first to congratulate the couple on their new arrival and took the opportunity to boast about her little niece.
She tweeted: "Am the proudest auntie in the whole world my baby niece is perfect . Congratulations @BillieFaiers & @GregShepherd_ (sic)."
Meanwhile, Billie revealed she was overdue last weekend and tweeted a photograph of her on a walk in the hope that exercise would kick start her labour.
She accompanied the snap with the caption: "Out for a nice long walk... Get this baby moving .. #overdue (sic)."
The Minnie's Boutique owner announced she was expecting a baby in January, but she admitted at the time that she was initially too nervous to do a pregnancy test.
She said previously: "In my head I knew I was pregnant because I missed my period, which never happens, but I was too nervous to do the pregnancy test because suddenly my whole life was about to change."

Leah Remini admits the "best thing" about leaving the Church of Scientology is she can "drink every other day".
The 44-year-old star dumped the religious organisation, which bans the consumption of alcohol within 24 hours of training, last year and she's glad she's now allowed to enjoy an alcoholic beverage whenever she wants.
Speaking on 'Watch What Happens Live' last night (09.07.14), she said: "The worst part [about scientology] was I couldn't drink every other day and best part [about leaving] is that I can drink every other day!"
However, the 'Kings of Queens' actress admits she's still trying to deal with life after scientology as she's lost some of her friends, but appreciates the things she does have.
She explained during an appearance on 'Good Morning America': "You look through your phone [and] you're like, 'Oh I can't call this person.' But you know, as we were in that time of loss and grief, still sad we lost our friends, we also have to look at what we do have. We have great family. We have great friends still in our lives."
Leah announced her decision to leave the organisation last July following years of abuse for questioning the actions of the Church leader, David Miscavige.

Dame Helen Mirren is glad she didn't find love until later on in life.
The 68-year-old actress is happy she didn't meet her husband Taylor Hackford until she was in her 40s because she doesn't think they'd have got together if they'd met when they were younger.
Speaking to Oprah Winfrey in the new issue of O magazine, she said: "I used to say to Taylor, 'I wish we'd met earlier on. We've missed so much time together. And he'd say, 'We'd never be together now if we met earlier.'
"And I think he's actually right because we were both on a trajectory of work and ambition and, of course, to a certain extent, wanting to resolve ourselves as ourselves."
The 'RED' star admits her relationship with the American director, whom she married in 1997, encouraged her to look at life differently and realise what is important to her.
She explained: "Before I met Taylor, all my relationships took second place to my work. If I had to go to Africa, it was 'Bye bye, I'm off to Africa.' And then he came into my life, and I started thinking, 'Maybe it's time to have a different attitude - and to say that my relationship is at least as important as my work. To give it the time."