Episode 401 Song Help!!

I was wondering if anyone knows the song that was playing in the first episode in season 4 where Heidi and Spencer are saying bye to Holly? There's a song that comes on but you don't hear any of the lyrics so I'm having a tough time trying to find it..

I think it's "So Young, So Sick" by The Mile After.

http://www.youtube.com/watch?v=4N1Y9JqN1as