AMA Lineup Adds Justin, Ke$ha and Katy

It’s one of the most popular award shows out there, and this year’s American Music Awards recently upped its already impressive performer line-up.

Aside from Christina Aguilera, Pink, Usher and Bon Jovi – it was just announced that Justin Bieber, Katy Perry and Ke$ha are set to take the stage as well during the November 21st show.

AMA producer, Larry Klein, released a statement saying, "Justin, Katy and Ke$ha have been on the top of the charts all year long. We are happy to see each of them make their own AMA history."

Meanwhile, Bieber told the Associated Press, "As a small-town kid from Canada, I never imagined that I would be nominated for AMAs, let alone be performing on the show."

Justin is nominated in four categories overall, while Perry and Ke$ha are up for three awards.