Lady Gaga has defended her South By South West Festival performance against bulimia claims.
The 27-year-old singer sparked outrage when performance artist Millie Brown vomited on her during her rendition of 'Swine' at the festival in Texas on Thursday night (13.03.14), but she insists the "strange" act is helping to change the art world.
During an hour-long keynote speech at the event, Gaga explained: "Sometimes things that are really strange and feel really wrong can change the world.
"I'm not saying vomit is going to change the world. What I'm saying is it's the idea of a moment where it's truly just what we wanted to create and us just respecting each other as artists was enough for the performance to be worth it."
Demi Lovato - who struggled with bulimia - had accused Gaga of "glamorizing" the eating disorder after Millie drank bottles of coloured milk before sticking her fingers down her throat and regurgitating onto the 'Applause' singer.
However Gaga brushed off the accusations, insisting she's a long-time fan of Millie's work and loves collaborating with her.
Gaga added: "I've known Millie for I think like five years now and we've actually collaborated before, she was just in town and so we thought we would collaborate again."

Britney Spears has congratulated Jamie Lynn Spears on her wedding day.
The 'Toxic' singer described the nuptials as "magical" when she took to Twitter to express her excitement after her younger sister tied the knot with fiance, Jamie Watson, in New Orleans on Friday (14.03.14).
Britney tweeted: "Yesterday was magical. So happy I could be a part of my little sister's big day. Congrats @jamielynnspears!!(sic)".
The congratulatory message comes after reports there had been "lots of tears" from guests at the " very emotional" ceremony which took place at Audobon Tea Room Garden.
Jamie Lynn was accompanied down the aisle by her father, Jamie while her five-year-old daughter Maddie - whom she had with ex-boyfriend Casey Aldridge - led the proceedings as flower girl.
According to US Weekly, Britney's sons Sean, 8 and Jayden, 7, also played a role and were both dressed in black tuxedos and white bowties.
A source revealed to the magazine: "It was a beautiful ceremony and very emotional. Jamie Lynn was crying during the vows and Jamie looked like the happiest guy I've ever seen get married."
The duo sparked speculation they were getting hitched after it emerged they obtained a marriage licence from Tangipahoa Parish Clerk of Courts earlier this month.

'Coronation Street' star Kym Marsh has been given a contract extension and pay rise.
The 37-year-old actress - who plays Michelle Connor in the soap - has been offered a new deal, which is said to include promises of dramatic storylines over the coming months.
An insider told The Sun on Sunday newspaper: "Kym is at the very centre of the show and there was no question that we would want to sign her up for another year.
"The scriptwriters are planning fantastic storylines for her later this year."
Kym's decision to stay gives the soap a boost as they prepare for the impending departures of Michelle Keegan, Sue Johnston, Chris Gascoyne, Charlie Condou and Phillip Lowrie.
Meanwhile, Bill Roache - who was recently cleared of historic sex assault and rape charges - has had an emotional return to the cobbled set of the show.
Speaking to the Sunday Mirror newspaper, a source said: "There was a big fanfare when he arrived, and a huge sense of relief that the court case is over.
"He has been sorely missed. He was quite overwhelmed."

Ronnie Corbett retires from showbiz as he battles a "mystery" illness.
The 83-year-old legendary comedian has brought an end to his famed TV career as his wife Anne insists he isn't going to keep going like 'Dancing On Ice' host Bruce Forsyth.
She told the Sunday Mirror newspaper: "He won't be doing any more TV - he's 83. He won't be like Bruce Forsyth."
It is said he is likely to need more tests to find out exactly what he is struggling with, as he battles health issues including chest pains.
Speaking about the day Ronnie was taken into hospital, Anne added: "We didn't know what was wrong.
"He was feeling sick in his stomach and he wasn't well. The hospital ran lots of tests, he was in there for several days."
After he complained about chest and stomach paints as well as feeling nauseous, Ronnie's wife insisted he sought medical treatment, although doctors weren't able to figure out what was causing his problems.
A source claimed: "It was a really worrying time for everybody while the doctors tried to find out what was wrong with Ronnie.
"His illness remains a mystery He is taking things easy at home and is trying to get better."

Tinie Tempah always sips on mint tea backstage before his concerts.
The 'Pass Out' rapper admits his tour rider isn't very rock 'n' roll and although he has a small amount of alcohol in his dressing room, his favourite thing to indulge in before a gig is home-brewed, fresh mint tea.
Quizzed about his concert must-haves, he said: "When I first started out, it was an abundance of sweets, but now it's very practical things. I like a good mint so, I've got fresh mint leaves to make my own tea, which is cool I have popcorn, I love sweet and salted.
"I have scented candles because it gets a bit sweaty in there with all the lads coming off the stage. A nice bottle of champagne to pop if the show goes great, too, and we have a shot of Jack Daniel's or some vodka before the show."
The stylish star was recently spotted with One Direction singer Harry Styles at London Fashion Week and says he always has time to catch up with the group.
Tinie told heat magazine: "It's always good to see Harry. From 'The X Factor' to where 1D have come now, it's a blessing. I'm always very happy for them. I brought them out on my show once and I have a lot of time for Harry and vice versa. We were just ogling models, as you would."

Brad Pitt wants his children to be "proud" of his work.
The 50-year-old actor - who raises Maddox, 12, Pax, 10, Zahara, nine, Shiloh, seven, and twins Knox and Vivienne, five, with fiancee Angelina Jolie - admits these days, his career choices are based on whether he will be happy to show the movie to his six kids when they get older.
He said: "The key for me [when choosing a film] is to leave something behind that will make my kids proud.
"I want to be able to show my films to my children and say, 'Your daddy made this.' "
The 'Moneyball' actor admits he struggled early in his career because he felt "lost" and took too much advice from other people, but he is now much more confident in the choices he makes.
He told Britain's OK! magazine: "When I was starting out, I didn't really follow my instincts. I felt kind of lost.
"You get a lot of advice from people who are trying to advance your career and make money off you - and that isn't necessarily a bad thing, but it isn't always going to lead you to make good films.
"But eventually, I figured out I was in the game to tell personal stories. I wanted to be able to add something to a film that was different to what anyone else could bring."

Rihanna is completely obsessed with Wotsits.
The 26-year-old singer is said to adore the cheesy-flavoured snack, which she ordered when she was staying at London's luxury Cafe Royal hotel - with boxes being paced in the limo she was travelling in so she could still enjoy them whilst on the move.
A source told the Sunday People newspaper: "Rihanna's love for Wotsits has caused much laughter among the staff. They find it very funny that the star would be so hooked on them.
"We're not just talking the odd packet here and there. She wants boxes of them on hand for whenever she fancies them. It is utterly bizarre but she just can't get enough of them.
"She is constantly asking for them to be delivered to her hotel suite ad her car also has to be fully stocked with them."
This comes after a film was revealed of the 'Pour It Up' singer pushing a man out of the men's toilet so that she could use it.
She was spotted entering the restroom and grabbing an unknown male by the arm before shoving him out and closing the door behind her, during her recent trip to Zouk Restaurant, Manchester.

Simon Cowell has bought his baby an Aston Martin pram.
The media mogul - who, along with his partner Lauren Silverman, welcomed their son into the world last month - has paid £2,000 on the top-of-the range buggy so that Eric can enjoy the same luxuries in life as his father.
A source told The Sun on Sunday newspaper: "Simon is used to enjoying ultimate luxury wherever he goes and of course he wants the same for his son."
The couple bought the pram during a recent shopping trip to Harrods, leading the upmarket department store to sell out of the item - with only 800 models made - which they describe as "the world's most outstanding contemporary baby travel system".
The store also claims it "cocoons and protects like no other".
The pricey pram features a hand stitched Italian leather interior, and is modelling off the £1.2 million Aston Martin One-77 coupe.
Simon recently insisted he was "born" for fatherhood, although he admitted he had his doubts before the birth of his son.
He said: "I was born to be a dad ... I actually said to Lauren beforehand, 'What if I like the dogs more than him?' - and she said, 'You're gonna be absolutely fine,' and then literally within seconds of him being born, I got it!"

Shakira says Gerard Pique deserves "a million love songs".
The 37-year-old singer has heaped praise on her partner, insisting while she's written many tracks for him over the years, she never feels like it's been "enough".
Speaking to The Sun on Sunday newspaper, she said: "I've written many love songs for Gerard. But it's never enough. I feel that he deserves a million love songs written for him."
Together, the couple welcomed son Milan into the world in January 2013 and Shakira has admitted Gerard's career as a soccer star for Barcelona means they have to be mainly rooted in the Spanish city.
She explained: "I have to live in Barcelona because Gerard is anchored here.
"Footballers are like soldiers, he can't really travel and go away with me. I'm trying to work out how I'm going to do my next tour.
"I miss him when I'm away and the baby is so little. I sometimes feel guilty."
However, the star also admitted she'd learned a lot from Gerard about being selfless and thinking "about being a team player".
She said: "He has a totally different mindset to me. He always thinks about how everything he does will impact on his team. That's very different to megalomaniac artists!
"I'm my own boss, I don't have a band and don't have to report to anyone. I was also an only child.
"I've flown solo my whole life and he has taught me so much about being a team player."

Fergie is in "positive" talks to join the 'X Factor' judging panel.
The Black Eyed Peas singer is being lined up to complete a quartet of Simon Cowell, Louis Walsh and returning star Cheryl Cole, with show bosses are "excited" by the idea of landing another big name.
An insider told the Sunday Mirror newspaper: "It's not a done deal just yet but things have been positive.
"Both sides are keen to move things forward and people at the show and ITV are excited at the prospect of having Fergie.
"She brings a lot to the show and her success globally with the Black Eyed Peas and her solo albums obviously speaks for itself. On top of that, she looks fantastic and fans love the glamour of the live shows."
Meanwhile, it is said reports Cheryl wanted to be the only female on the panel are off the mark - and it is claimed she "would love" to be joined by another woman on the show.
Speaking to the Sunday People newspaper, a source said: "Cheryl would love the other judge to be a woman.
"She is very supportive of young women in showbiz and would love to have another female on her side."

'The Voice' coach Ricky Wilson has told his female stars to start working as a team.
Although the Kaiser Chiefs front man knows his contestants are all battling to win the BBC singing competition, it is said he wants them to stop seeing each other as simply "obstacles that need to be smashed".
Speaking to The Sun on Sunday newspaper, a source revealed: "The girls on Ricky's team are by far the most competitive and there has been a lot of bitching going on.
"They see each other as obstacles that need to be smashed out of the way. It began as a few snide remarks, but then the claws really came out ... A few days before the knockout rounds one singer was left in tears.
"That's when Ricky decided enough was enough. He told them it was fine to be competitive but they had to realise they were a team and the only chances they were scuppering were their own."
On tonight's show (16.03.13), viewers will see Christina Marie and Emily Adams showing much less of a union than the contestants on will.i.am's team.
The insider added: "It was obvious they were willing each performer to fail.
"If looks could kill, there would have been some serious casualties. It's fair to say Ricky will be glad when he has just three acts left."

John Legend thinks fatherhood has "changed" Kanye West.
The 'Ordinary Love' singer, who is friends with the rapper and his fiancée Kim Kardashian, feels the pair are well-suited and says the birth of their nine-month-old daughter North has had a real affect on Kanye.
John told BANG Showbiz: "I think fatherhood has changed him, it can't help but change you when you have this beautiful young thing depending on you to protect them and nurture them."
The 35-year-old singer, who married model Chrissy Tiegan last year in Italy, thinks Kanye's wedding will be much more "grand" than his own nuptials were.
He said: "He's engaged to Kim now, once you're engaged it's like you're already married anyway, you've made that commitment to each other, it's damn near official.
"I'm excited for him and Kim, I think they're great for each other. Kanye came to my wedding and I know he loved that experience, I don't know what he'll do for his own but he's a little more grand than I am.
"Ours was really beautiful and picturesque and more of a destination wedding. I'm just happy for him and Kim, and their child is beautiful."
But despite being more reserved than his controversial friend, he insists he doesn't give him advice when it comes to his opinions or personal life.
He said: "We're both grown-ups, we've all been through a lot and seen a lot. I don't think we need each other's advice on this sort of thing.
"We know what we're doing. We definitely talk about music a lot and our opinions about art. I don't really try and tell him how to run his social life, nor does he do that to me."