Justin Bieber and Taylor Swift perform an awesome duet of his hit song "Baby" during Swift's show at the Staples Center in L.A. on Tuesday, but something else caught our eye -- the Biebs' pants! What do you think of Justin's look? Plus, there's a mini "Clueless" reunion when Alicia Silverstone and Paul Rudd hit the red carpet for a screening of his new flick, and is Miley Cyrus going to be an aunt?
- Alicia Silverstone
- Justin Bieber