Here is the OFFICIAL TOP 50 of 2009:
50. Sean Kingston - Fire Burning
49. Selena Gomez - Falling Down
48. Ciara - Never Ever
47. Black Eyed Peas - Boom Boom Pow
46. Keri Hilson - Knock You Down
45. Miley Cyrus - Party In The U.S.A.
44.The Dream - My Love
43. Jennifer Lopez - Louboutions
42. 30H!3 - Starstrukk Remix
41. Jesse McCartney - Body Language
40. Ciara - Love Sex Magic
39. Lady GaGa - Dance In The Dark
38. Green Day - 21 Guns
37. P!nk - Funhouse
36. Boys Like Girl - Love Drunk
35. Ashley Tisdale - Erase and Rewind
34. Mariah Carey - I Want To Know What Love Is
33. Shakira - She Wolf
32. Adam Lambert - Whataya Want From Me
31. Mariah Carey - Ribbon/Up Out My Face
30. Cascada - Evacuate the Dancefloor
29. Katy Perry - Waking Up In Vegas
28. Lady GaGa - Paparazzi
27. Jesse McCartney - How Do You Sleep?
26. Ashley Tisdale - Masquerade
25. Kristina DeBarge - Goodbye
24. P!nk - PLease Don't Leave Me
23. Britney Spears - If You Seek Amy
22. Jordin Sparks - S. O. S. (Let the Music Play)
21. Kelly Clarkson - I Do Not Hook Up
20. Jessie James - Wanted
19. Katy Perry - Thinking Of You
18. Leona Lewis - Happy
17. Beyonce - Video Phone Remix
16. Alicia Keys - Try Sleeping With A Broken Heart
15. Kelly Clarkson - My Life Would Suck Without You
14. Lady GaGa - Telephone
13. Rihanna - Russian Roulette
12. Mariah Carey - Obsessed
11. Ashley Tisdale - It's Alright, It's OK
10. Lady GaGa - Poker Face
9. Ke$ha - TiK ToK
8. Jay Z - Empire State of Mind
7. Adam Lambert - Time for Miracles
6. Britney Spears - 3
5. Shakira - Give It Up To Me
4. H.A.T.E.U (Radio Edit) - Mariah Carey
3. Hard - Rihanna
2. Bad Romance - Lady GaGa
1. Crank It Up - Ashley Tisdale