Summary: Dance music - (1) LMFAO, (2) Britney Spears, (3) Adele, (4) Jennifer Lopez f. Lil Wayne, (5) Katy Perry, (6) FNA, (7) Jason Derulo, (8) Pitbull, (9) Michael Jackson, (10) Lady Gaga vs. Madonna, (11) Chaka Khan, (12) Black Eyed Peas, (13) Eric Prydz