The Black Cab Sessions is one of the coolest YouTube channels out there. A bunch of Brits somehow manage to gather up famous artists, stick 'em in the back of London's famous black cabs, and drive around the streets of London. All the while, the musician plays a song or two in the cab's back seat. The camera alternates between the musician and the common scenes of London.
Here's Bon Iver's Black Cab Session. He's playing "Creature Fear" and it sounds great!