Rihanna vs. Jakwob

Armin Van Buuren Ft. Trevor Guthrie vs. Calvin Harris Ft. Example vs. Zedd Ft. Foxes Savage Garden vs. Mariah Carey ft. Miguel Ke$ha vs. The Foo Fighters vs. Jay Sean ft. Lil Wayne Taylor Swift vs. Britney Spears Nicki Minaj ft. Lene Marlin