WHAT A BEAUTIFUL DREAM
I found this great site that shows you what songs were on the OC. I think i've actually been to that site before, but I had to revisit it when trying to figure out who covered the Neutral Milk Hotel's "In An Aeroplane Over the Sea." It was Matt Pond PA (whom also covered "Wonderwall" i think).
I went to my file sharing service and found a live cover of the song by Dax Riggs.
Give it a listen:
Dax Riggs - In The Aeroplane Over the Sea