Some Random Mashups: Castles Till The World Ends Ian Van Dahl vs. Britney Spears Push The Shadows On Nightcrawlers vs. The Rasmus What About Pendulum John Barrowman vs. Pendulum Always Rock The Boat On Time Aaliyah vs. Ja Rule Hands Up High Waka Flocka vs. Taio Cruz OMG, I Smacked My Bitch Up The Prodigy vs. Usher ft. Will.i.am Just A Little More Love David Guetta vs. The XX And Guests Believe In A Sexual Eruption (... Snoop Dogg vs. Cher Testify Memories Rage Against The Machine vs. David Guetta ft. Kid Cudi Party 3X Chris Brown vs. Jason Derulo vs. LMFAO The Last 12 Friday Nights Katy Perry vs. The Twelves vs. Cicada I Kissed A California GurlR... Katy Perry vs. Katy Perry