JLo Shaking Her Booty, Justin Bieber Losing His Pants The High And Low Of Fashion Week Concert

The 2014 Fashion Rocks concert on Tuesday night at the Barclays Center in Brooklyn, part of New York City's Fashion Week, was all about the booty and the booing.

Latina pop singer Jennifer Lopez earned some of the night’s loudest cheers with a rump-shaking dance routine during a performance of her single, “Booty.”

The 45-year-old also clapped and watched as Nicki Minaj performed her hit, “Anaconda,” with a number of background dancers, including shirtless men.

These tantalizing moments were contrasted by the crowd’s boo-bird treatment of New York Giants’ receiver Victor Cruz, who was introducing the breakthrough reggae-pop band MAGIC!.

Cruz and the Giants looked dismal in their Monday night, 35-14 loss to the Detroit Lions, and the hometown fans weren't afraid to express their displeasure.

But the most disliked person on the stage was Justin Bieber.

The Canadian singer was booed lustily as he walked onstage to introduce singer Rita Ora. As the crowd continued, he stripped down to his boxers and socks.

“I actually don’t feel comfortable unless I’m in my Calvin’s. So, what’s up? Is that cool?” Bieber said to his co-presenter, model Lara Stone.

Bieber’s mentor, Usher, kicked off the two-hour show, which aired on CBS. Highlights included fiery performances from Pitbull, Enrique Iglesias, the Band Perry, Jennifer Hudson, Afrojack, Luke Byran and Duran Duran.

Kiss closed the special with “Rock and Roll All Nite.”

Based on reporting by the Associated Press.

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