Cee Lo Green (b. 1974, real name Thomas Calloway) is a singer, songwriter, record producer and actor. He is a member of the groups Goodie MOb and Gnarls Barkley, and was an original 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.