Gnarls Barkley

This performance looks like SO much fun!

The Zac Brown Band are famous for creating their own wonderful musical melange, blending country, rock, folk and pop. So it's no surprise that lead singer Zac Brown is eager to throw even more into the group's mix. When we asked Zac at a recent AOL Sessions taping whom he'd love to record with, he brought up Cee Lo Green, the R&B rapper/singer best known as half of Gnarls Barkley and for his