1. "The Heinrich Maneuver" - Interpol
2. " Banquet" - Bloc Party
3. "Starlight" - Muse
4. "Time to Pretend" - MGMT
5. "Thank God" - Storm Large
6. " Positive Tension" - Bloc Party
7. "Feel Good Inc." - Gorillaz
8. "No I In Threesome" - Interpol
9. "Golden Skans" - Klaxons
10. "This Fire" - Franz Ferdinand
11. "Supermassive Black Hole" - Muse
12. "Beautiful" - Storm Large
13. "Munich" - Editors
14. "Kids" - MGMT
15. "Helicopter" - Bloc Party
16. "Y Control" - Yeah Yeah Yeahs
17. "Chocolate" - Snow Patrol
18. "An Honest Mistake" - The Bravery
19. "Smokers Outside the Hospital Doors" - Editors
20. "Your Ex-Lover Is Dead" - Stars
21. "Tony The Beat" - The Sounds
22. "Valerie" - The Zutons
23. "An End Has a Start" - Editors
24. "Inside And Out" - Feist
25. "Rain" - Bishop Allen
26. "She's Hearing Voices" - Bloc Party
27. "Passenger Seat" - Death Cab For Cutie
28. "Song With A Mission" - The Sounds
29. "Wish I" - Jem
30. "LDN" - Lily Allen
31. "Combat Baby" - Metric
32. "Not Alright" - Storm Large
33. "24" - Jem
34. "I Bet You Look Good On The Dancefloor" - Arctic Monkeys
35. "Like Eating Glass" - Bloc Party
36. "Atlantis to Interzone" - Klaxons
37. "Our Velocity" - Maxïmo Park
38. "Hysteria" - Muse
39. "Our Life is Not a Movie or Maybe" - Okkervil River
40. "Feel Good Time" - P!nk
41. "Soft Revolution" - Stars
42. "Last Nite" - The Strokes
43. "There Goes the Fear" - Doves
44. "Great DJ" - The Ting Tings
45. "Since U Been Gone" - Kelly Clarkson
46. "Electric Feel" - MGMT
47. "Naïve" - The Kooks
48. "The Jessica Numbers" - The New Pornographers
49. "New Slang" - The Shins
50. "Glass Ceiling" - Metric
Also, in case you missed them, check out my 25 Great Songs of 2009, 30 Great Albums of 2009 and 70 Absolutely Awesome Albums from 2000-2009 lists or check the whole best of series.
Photo from thetingtings.com.