Pictures of Usher, Trey Songz, Diddy, Gavin Rossdale, Ryan Kwanten and More Arriving at AMAs 2010-11-21 22:29:00

There were plenty of hot guys on the red carpet at last night's American Music Awards in LA. Usher was cool and collected before his performance, as was Bush's Gavin Rossdale. New Kids on the Block and Backstreet Boys reunited for one huge group photo, while True Blood heartthrob Ryan Kwanten rolled solo. Check out all the girls here and click through to see all the guys!