I have to admit, I've been a bit obsessed with Vampire Weekend this week(end). Even so, this is pretty cool -- the band plays a few songs while walking in Paris and then in a bar. I especially like the random guy listening to his headphones and ignoring the band playing at the next table. The rest of the songs can be found HERE.
Apparently this guy does this a variety of different music acts (Tom Jones!). Definitely a cool idea and worth checking out.