PopCrush Staff

Ashlee Simpson is just one of many stars who bungled sets on TV's most coveted stage.

Bruno gives an explosive performance days after his '24k Magic' album's release.

J.Lo brought her A-game (and a few A-lister friends) to the debut of her 'All I Have' residency at The Axis in Las Vegas.

The singer tackles the Spice Girls plus her own songs, and earns a thumbs-up from Nicki Minaj after she tackles 'Monster' in the Late Late Show clip.