The singer-actress jokingly played the amnesiac during a Monday interview on Ryan Seacrest's KIIS FM radio show. "Did I trip a little bit?" she says coyly when Seacrest mentions the tumble. "I don't even remember." Jennifer Lopez's mishap occurred after the star mounted a human pyramid of bare-chested male dancers and jumped off a dancer's back -- landing on her famous bottom and quickly bouncing back

Favorite Pop/Rock Band/Duo/Group: The Black Eyed Peas Favorite Country Band/Duo/Group: Rascal Flatts Favorite Female Pop/Rock Artist: Taylor Swift Favorite Alternative Rock Artist: Green Day Favorite Male Soul/R&B Artist: Michael Jackson Favorite Male Country Artist: Keith Urban Favorite Female Soul/R&B Artist: Beyonce Favorite Female Country Artist: Taylor Swift Favorite Male Pop/Rock Artist: Michael Jackson Favorite Male Rap/Hip-Hop Artist: Jay-Z Favorite Artist of the Year: Taylor Swift T-Mobile Breakthrough Award: Gloriana

Adam Lambert’s show-stopping performance at the 2009 American Music Awards shocked the crowd – and not because of his trademark rock ‘n’ roll wail. The star brought some bedroom moves to the stage during his performance of “For Your Entertainment,” the first single from his album of the same name – dragging a female backup dancer by the leg, simulating fellatio with a male dancer and