Miley Cyrus: "7 things" 44 days / +1 / Peak: 01[x1]
David Achuleta: "Crush" 5 days / -1 / Peak: 09
Rihanna "Disturbia" 50 days / +1 / Peak: 01 [x2]
Tylor Swift: "Love Story" 19 days / -4 / Peak: 07
Hilary Duff: "Reach out" 18 days / -2 / Peak: 08
Pussycat Dolls: "I hate This Part" 21 days / -3 / Peak: 01 [x1]
Britney Spears: "Womanizer" 33 days / = / Peak: 01 [x20]
Katy Perry: "Hot And Cold" 18 days / +3 / Peak: 02
