It's Hide and Seek by imogen heap
Brenda Lee "I Wonder"
Isobel Campbell & Mark Lanegan - Come on Over (Turn Me On)
The song at the end of 'The Christmas Invasion' in Series 2, Episode 1 is "Song For Ten" from the Doctor Who: Original Television Soundtrack.
The song is "Why Does My Heart Feel So Bad?" by Moby from his album "Play".
The song is called Greasy Spoon by the Crusaders!
Get the Wheel by Greg Dulli
Lullaby by Sia
Brenda Lee "I Wonder"
Enablers - Captured Blues
Keep yourself warm by Frightened Rabbit
Rocco DeLuca and The Burden-Swing Low
Bonobo - If You Stayed Over
Valerie June - Working Woman Blues
Valerie June - Working Woman Blues
"Last Call" by S.O.L.O. It's an unreleased track.
Isobel Campbell & Mark Lanegan - Come On Over (Turn Me On)
The episode is called Prom Wrecker (second season). The song is at the very end of the episode.