Two blokes
I came across this video from last July of Colin Meloy playing 3 songs while going up and down in the lift in Paradiso. Quite sweet, especially when the lift doors almost eat him.
I knew it would be a mistake to mention Adam Brody. I had a spike in traffic and found it was apparently from someone linking to my site from some OC fan forum. I was just asking for that though, wasn't I?