Music of the OC

Trespassers William	Alone		Lyrics	Ryan and Theresa's car scene.
Death Cab for Cutie	A Lack of Color		Lyrics	Seth asks Anna to stay, Marissa asks Ryan if she can help Theresa to Sandy and Kirsten's scene outside by the pool.
Interpol	Specialist		Lyrics	Ryan and Theresa's motel scene to the commercial.
Mastersource*	Walkin' the Walk	-	-	1st song playing at the party
Mastersource*	Something For You	-	-	2nd song playing at the party
Journey	Seperate Ways		Lyrics	Playing when Ryan is driving Seth to the airport. 'Do not, insult Journey' - Ryan
Nada Surf	If you Leave		Lyrics	Seth and Anna have an emotional goodbye at the airport to the end.