Then the action will kick off in earnest at 8 p.m., when comedienne Chelsea Handler hosts the awards show, which will feature performances from Eminem, Kanye West, Justin Bieber, B.o.B, Drake, Linkin Park, Usher, Paramore and Florence & the Machine, along with Travie McCoy, Jason DeRulo and Robyn, who will take the stage with this year's VMA house artist, deadmau5.