Summary: Dance music - (1) Skrillex, (2) Chris Brown f. Benny Benassi, (3) LMFAO, (4) David Guetta, (5) Adele, (6) Cobra Starship f. Sabi, (7) Britney Spears, (8) Duck Sauce, (9) Alexandria Stan, (10) Maroon 5 f. Christina Aguilera, (11) Leona Lewis...