Okay First point: What a great season finale...talk about more questions than answers...plus we have to wait until 2008??!?!?!?!?
Second the song in the background is "All Along the Watchtower" performed by Bear McCreary the composer for the show. I hope he releases it as a single.
Finally...the song is a BOB DYLAN tune, not a Jimi Hendrix song...Jimi did a cover of it and it was a really good cover but he didn't write it. And worst of all It is not a Dave Matthews cover of a Jimi Hendrix Song. Jeez. get a life folks and learn something.
Watch the last 4 minutes....they are awesome.