30. R.E.M. / "Mine Smell Like Honey"
29. Capri / "Sonido Criminal"
28. Crystal Fighters / "At Home"
27. The Vaccines / "Post Break-Up Sex"
26. Lykke Li / "I Follow Rivers"
25. Britney Spears / "Hold It Against Me"
24. Alexis Jordan / "Happiness"
23. Deerhunter / "Helicopter"
22. Parachute / "Something To Believe In (Jeremiah)"
21. The New ****ographers / "Moves"
20. Matt & Kim / "Cameras" [DEBUT]
19. Flo Rida feat. Akon / "Who Dat Girl" [DEBUT]
18. The Wombats / "Jump Into The Fog" [2w][+1][max:18]
17. Cage The Elephant / "Shake Me Down" [4w][-5][max:12]
16. Jessie J feat. B.o.B / "Price Tag" [2w][+2][max:16]
15. Cut Copy / "Take Me Over" [2w][+2][max:15]
14. Miranda! / "Ritmo & Decepción" [8w][-1][max:08]
13. Rihanna feat. Drake / "What's My Name?" [13w][-2][max:02]
12. Black Eyed Peas / "The Time (Dirty Bit)" [11w][-6][max:02]
11. Rihanna / "S&M" [2w][+4][max:11]
10. Crystal Castles feat. Robert Smith / "Not In Love" [2w][+6][max:10]
09. Nada Surf / "Enjoy The Silence" [3w][+5][max:09]
08. Martin Solveig & Dragonette / "Hello" [3w][-1][max:07]
07. Adele / "Rolling In The Deep" [4w][-2][max:05]
06. Two Door Cinema Club / "What You Know" [4w][+4][max:06]
05. Bruno Mars / "Grenade" [13w][-2][max:01(3)]
04. Noah And The Whale / "L.I.F.E.G.O.E.S.O.N." [2w][+4][max:04]
03. Kings Of Leon / "Pyro" [9w][+1][max:03]
02. Paramore / "Playing God" [5w][-1][max:01(1)]
01. Avril Lavigne / "What The Hell" [5w][+1][max:01(2)]
» Rooney / "Holdin' On"
» The Strokes / "Under Cover Of Darkness"
» Colbie Caillat / "I Do"
» Take That / "How Deep Is Your Love"
» 2005: Snow Patrol / "Chocolate"
» 2006: Green Day / "Jesus Of Suburbia"
» 2007: The Corrs / "Goodbye"
» 2008: Janet Jackson / "Feedback"
» 2009: Jason Mraz feat. Colbie Caillat / "Lucky"
» 2010: Boys Like Girls feat. Taylor Swift / "Two Is Better Than One"
30. Maroon 5 / "Never Gonna Leave This Bed"
29. Crystal Fighters / "At Home"
28. Shakira / "Sale El Sol"
27. The Vaccines / "Post Break-Up Sex"
26. Miranda! / "Ritmo & Decepción"
25. Cage The Elephant / "Shake Me Down"
24. Cut Copy / "Take Me Over"
23. Colbie Caillat / "I Do"
22. Lykke Li / "I Follow Rivers"
21. Parachute / "Something To Believe In (Jeremiah)"
20. The New ****ographers / "Moves" [DEBUT]
19. Rihanna feat. Drake / "What's My Name?" [14w][-6][max:02]
18. Ra Ra Riot / "Too Dramatic" [DEBUT]
17. Cut Copy / "Need You Now" [DEBUT]
16. The Wombats / "Jump Into The Fog" [3w][+2][max:16]
15. Matt & Kim / "Cameras" [2w][+5][max:15]
14. Flo Rida feat. Akon / "Who Dat Girl" [2w][+5][max:14]
13. Jessie J feat. B.o.B / "Price Tag" [3w][+3][max:13]
12. Martin Solveig & Dragonette / "Hello" [4w][-4][max:07]
11. Adele / "Rolling In The Deep" [5w][-4][max:05]
10. Rihanna / "S&M" [3w][+1][max:10]
09. Bruno Mars / "Grenade" [14w][-4][max:01(3)]
08. Crystal Castles feat. Robert Smith / "Not In Love" [3w][+2][max:08]
07. Nada Surf / "Enjoy The Silence" [4w][+2][max:07]
06. Kings Of Leon / "Pyro" [10w][-3][max:03]
05. Paramore / "Playing God" [6w][-3][max:01(1)]
04. Britney Spears / "Hold It Against Me" [DEBUT]
03. Avril Lavigne / "What The Hell" [6w][-2][max:01(2)]
02. Noah And The Whale / "L.I.F.E.G.O.E.S.O.N." [3w][+2][max:02]
01. Two Door Cinema Club / "What You Know" [5w][+5][max:01(1)]
» Cage The Elephant / "Shake Me Down" [#17][4w][max:12]
» Cut Copy / "Take Me Over" [#15][2w][max:15]
» Miranda! / "Ritmo & Decepción" [#14][8w][max:08]
» Black Eyed Peas / "The Time (Dirty Bit)" [#12][11w][max:02]
» Bright Eyes / "Shell Games"
» Yeasayer / "I Remember"
» Yellowcard / "For You, And Your Denial"
» Jason Mraz / "The Remedy (I Won't Worry)"
» 2005: Sum 41 / "Pieces"
» 2006: Nickelback / "Far Away"
» 2007: Gwen Stefani feat. Akon / "The Sweet Escape"
» 2008: Janet Jackson / "Feedback"
» 2009: Jason Mraz feat. Colbie Caillat / "Lucky"
» 2010: Kris Allen / "Live Like We're Dying"
And I ABSOLUTELY need to check out new Rooney, so thanks for reminding me. 
