Owl City vs. Maroon 5

Calvin Harris ft. Ellie Goulding vs. The Outfield Ke$ha vs Will.I.Am. P!nk vs. Michael Jackson vs. Green Day Avicii vs. Chumbawamba vs. David Guetta ft. Usher vs. Pitbull ft. Ne-Yo Jennifer Lopez feat. Ray Dalton & Pitbull vs. Macklemore