Jason Sudeikis hosts the 20th annual bash, held at the Gibson Amphitheatre in Los Angeles. Honorees include Reese Witherspoon, who will be presented with the MTV Generation Award. Foo Fighters, Lupe Fiasco and Trey Songz are scheduled to perform. Presenters include Ryan Reynolds; Steve Carrell; Cameron Diaz; Jesse Eisenberg; Selena Gomez; Jason Segel; and Aziz Ansari.
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TVGuide.com editors break down theories about what's coming up on The Walking Dead