()= Last week
1. Katy Perry- Firework (#4)
2. Bruno Mars- Grenade (#3)
3. Ke$ha- We R Who We R (#6)
4. Nelly- Just a Dream (#5)
5. P!nk- Raise Your Glass (#2)
6. Enrique Iglesias feat. Ludacris- Tonight (#8)
7. Avril Lavigne- What the Hell (#12)
8. Usher- More (#1)
9. The Script- For the First Time (#15)
10. Lady Gaga- Born This Way (#18)
11. JTX- Love In America (#10)
12. Jason Aldean feat. Kelly Clarkson- Don't You Wanna Stay (#11)
13. Taio Cruz feat. Travie McCoy- Higher (#14)
14. Every Avenue- Tell Me I'm a Wreck (#9)
15. Mann feat. 50 Cent- Buzzin' (#29)
16. The Downtown Fiction- I Just Wanna Run (#13)
17. Pink- Perfect (#16)
18. My Chemical Romance- SING (#17)
19. Rihanna- S&M (#35)
20. Lifehouse- All In (#7)
21. Britney Spears- Hold It Against Me (#21)
22. Train- Marry Me (#20)
23. Katy Perry- Teenage Dream (RE-ENTRY)
24. Glee Cast- Fat Bottomed Girls (#44)
25. Mike Posner feat. Lil' Wayne- Bow Chicka Wow Wow (#26)
26. Rock Mafia- The Big Bang (#22)
27. Travie McCoy- We'll Be Alright (#24)
28. Miranda Cosgrove- Dancing Crazy (#39)
29. Far East Movement feat. Ryan Tedder- Rocketeer (#27)
30. Mumford & Sons- The Cave (DEBUT)
31. Nelly feat. Kelly Rowland- Gone (#36)
32. Vampire Weekend- Holiday (#25)
33. David Guetta feat. Rihanna- Who's That Chick (#23)
34. Taylor Swift- Back to December (#30)
35. Bruno Mars-Just the Way You Are (#19)
36. The Daylights- I Hope This Gets To You (#28)
37. Edward Maya & Vika Jigulina- Stereo Love (#38)
38. Cee Lo Green- F U (#42)
39. Far East Movement feat. The Cataracs & Dev- Like A G6 (#40)
40. Hot Chelle Rae- Tonight Tonight (DEBUT)
41. Usher feat. Pitbull- DJ Got Us Falling In Love (#43)
42. Christina Perri- Jar of Hearts (#34)
43. Taio Cruz- Dynamite (#31)
44. Linkin Park- Waiting for the End (#37)
45. Rihanna- Only Girl (In the World) (#45)
Falling Off
Neon Trees- 1983 (#32)
Big Heed & Alien- Tipsy (#33)
Lady Antebellum-Need You Now (#41)
Hit-Bound Songs
Jennifer Lopez feat. Pitbull- On the Floor
Arcade Fire- The Suburbs
Katy Perry feat. Kanye West- E.T.
Duck Sauce- Barbra Streisand
Flo-Rida feat. Akon- Who Dat Girl
The Summer Set- Chelsea
Big Time Rush feat. Snoop Dogg- Boyfriend
Martin Solveig feat. Dragonette- Hello
Black Eyed Peas- Just Can't Get Enough
Paper Tongues- Get Higher
Pitbull feat. T-Pain- Hey Baby (Drop It to the Floor)
Runner Runner- Papercuts
Ke$ha- Blow
Black Keys- Tighten Up
Tinie Tempah feat. Eric Turner- Written In The Stars