Christina Aguilera, Cee Lo Green, and More Perform "Crazy" on The Voice

Christina Aguilera, Cee Lo Green, and More Perform "Crazy" on The Voice

The series premiere of The Voice got off to a hot start Tuesday night, when the four coaches -- Adam Levine, Blake Shelton, Christina Aguilera, and Cee Lo Green -- performed the Gnarls Barkley song "Crazy."

Transcript