Gossip Girl - Season 3, Episode 20: Soundtracks

at the beginning, middle when Dan talks to Vanessa at the cafe, again when Blair talks to Chuck at his place, and again at the end of the episode

Lily and Rufus talk at the Gala, Rufus finds out about Jenny's drug dealing

Dan on the phone with Rufus.

Jenny and Dan talking about the Gossip Girl blast.

Song playing in the background towards the end of the episode in the apartment.