Bieber Turns Boos To Cheers By Stripping

Justin Bieber was greeted by loud boos as he walked on stage at a fashion event in New York but soon managed to charm the audience by taking off his clothes.

The Canadian pop star received the frosty reception as he introduced Rita Ora at Fashion Rocks.

As he walked down the catwalk with his co-presenter, model Lara Stone, he said: "I actually don't feel comfortable unless I'm in my Calvins. So, what's up? Is that cool?"

As he removed his blazer, tank top and trousers and stood in his boxer shorts, the boos turned to cheers as the crowd pulled out their smartphones to record the moment.

Meanwhile, Jennifer Lopez performed her new single Booty in a shimmery silver dress during the charity fundraiser, while Nicki Minaj sang her hit Anaconda.

Usher kicked off the two-hour show, which included performances from Jennifer Hudson, Enrique Iglesias and the Band Perry.

Kiss closed the special with Rock and Roll All Nite.

Other performers included Duran Duran, Nico and Vinz, Afrojack, Pitbull and Luke Bryan.

Naomi Campbell and Paris Hilton were among the other presenters while Ryan Seacrest was the host.

Fashion Rocks coincides with New York Fashion Week which has attracted music, television and film stars this year.