sub focus out of the blue
lets g0-neyo
season 1 episode 13 escobar gallardo soundtrack
There are 18 songs in the first season
Justin Bieber
Season Two, "Comeback".
None, that I recall.
Woods by Bon Iver
Silly Love Songs. Season Two Episode Twelve.
Wye Oak - Civilian
"You" by Fisher
I`m not sure if you mean songs, because there`s been a handful of Gaga songs preformed, but the episodes that were dedicated to her were Born This Way and Theatricality. Theatricality was season 2, episode 20 Born This Way was season 2, episode 18 They`ve also covered a bunch of other songs, You and I, The Edge Of Glory, and Poker Face. :)
A very good song indeed