One Direction win three MTV Video Music Awards in LA
One Direction have topped the MTV Video Music Awards (VMAs) picking up three trophies for What Makes You Beautiful.
The group took home best new artist, best pop video and most share-worthy video.
They also performed their latest song, One Thing, for fans at the ceremony in Los Angeles.
"Thank you so much! We have grown up watching this show and to collect one of these [awards] straight away is incredible," said Niall Horan.
Simon Cowell, the band's manager tweeted the group saying: "Congratulations 1D. I'm very proud of you. Celebrate!"
One Direction, who got together on the X Factor, became the first UK pop group to debut at number one on the US album chart earlier this year with Up All Night.
More than 10,000 fans are estimated to have turned up to see the stars' first live TV performance in the US when they appeared on NBC's Today Show in New York.
They sold 176,000 copies of the album in the US in a week and it topped the digital charts minutes after its release.
Rihanna had the most nominations going in to the event with five although she only won one award in the end, for video of the year.
"I love you guys! This is awesome," said Rihanna, as she collected her trophy.
On her way from collecting the prize she was congratulated by her ex-boyfriend Chris Brown, who previously pleaded guilty to assaulting the pop star before the Grammy music awards in 2009.
Green Day's Billie Joe Armstrong also appeared at the ceremony, where he was mobbed after inviting fans to come up on stage.
He looked fully recovered after being taken to hospital earlier in the week.
Alicia Keys was joined on stage by US Olympic gymnast Gabby Douglas, who back-flipped while the singer performed her new single Girl On Fire.
Performers also took the opportunity to crowd surf, with Taylor Swift, Lil Wayne and host Kevin Hart all diving off the stage.
MTV Video Music Award winners
Video of the year: Rihanna ft Calvin Harris - We Found Love
New artist: One Direction - What Makes You Beautiful
Female video: Nicki Minaj - Starships
Male video: Chris Brown - Turn Up The Music
Hip-hop video: Drake ft: Lil Wayne - HYFR
Pop video: One Direction - What Makes You Beautiful
Rock video: Coldplay - Paradise
Video with a message: Demi Lovato - Skyscraper
Electronic dance music video: Calvin Harris - Feel So Close
Most share-worthy video: One Direction - What Makes You Beautiful
The MTV VMAs are on MTV UK on Friday 7 September at 9pm, Saturday 8 September at 5pm and 11pm and Sunday 9 September at 3pm