Cee Lo Green (b. 1974, real name Thomas Calloway) is a singer, songwriter, record producer and actor. He is a member of the group Gnarls Barkley and is currently a judge on the NBC game show, The Voice.
The Muppets are featured on his Christmas album, Cee Lo's Magic Moment, performing the original song "All I Need is Love" with Green. They also performed the song with Green at his Las Vegas show on October 10, 2012. The performance aired as part of a TV special (also titled Cee Lo's Magic Moment), and a music video of the song featuring Green and the Muppets debuted online in November. In the video, Green briefly gave singing voice to his own caricature Muppet, Lo-Co.