It's called "Boom, Boom" by Anacron.
The name of the song you're asking about is called Party by Daniel Licht. You will also find this song on the soundtrack for the first season of Dexter.
Secret by the Pierces
storm by lifehouse
Season Two's regionals episode was Season 2, Episode 16, "Original Song".
The jazz song of Season 2 Episode 8 of Lilyhammer is Caruso.
no its in season 2 episode 16
Last Song in season 3 episode 2 before credits of Wallander
The Season 4 episode "PTV"
The episode is called Prom Wrecker (second season). The song is at the very end of the episode.
season two, episode "original song"
Season 1, Episode 17: Bad Reputation
Glee season 2 episode 16- Original Song