3OH!3's Pick From This Hour:

40. Katy Perry “Firework” 

39. Bruno Mars “The Lazy Song” 

38. B.o.B “Airplanes ft. Hayley Williams” 

37. Sean Kingston “Beautiful Girls” 

36.  Lil Wayne “Lollipop” 

35.  The All-American Rejects “Move Along” 

34. Wiz Khalifa “Black and Yellow” 

33. Jennifer Lopez “Jenny From The Block” 

32. Trey Songz “Bottoms Up ft. Nicki Minaj” 

31. Chris Brown “Run It”