Ke$ha, Usher and No Doubt have just been added to join the lineup of this year's American Music Awards, November 18 on ABC. 

Previously-announced performers include Pink, Pitbull, Taylor Swift, Carrie Underwood, Nicki Minaj, Christina Aguilera and Linkin Park.  Winners will be determined by online voting -- you can vote now at AMAVote.com or AMA.abc.com.