Elevator

Britney Spears, Usher and the Black Eyed Peas were all in an elevator. Someone farted.
Usher said ' Its my confessions. I didnt do it'
Black Eyed Pea's said 'Didnt come out of my hump' and Britney Spears said 'Oops I did it again' then they all got off and thats how Britney Spears lost all popularity she ever had.