LOS ANGELES: Cee Lo Green says he'll stick with ''The Voice'' singing competition show ''as long as it's fresh.''

The rapper turned singer joined the show last year as coach and judge alongside Christina Aguilera, Blake Shelton and Adam Levine.

Green, 37, said in an interview this week that he believes NBC has plans in place should any of the judges decide to leave. But for now he's happy to continue ''building the brand of Cee Lo Green'' on the popular TV series, which ends its second season next week.

Aguilera's appearance on Maroon 5's hit ''Moves Like Jagger'' has led to further musical collaboration among the singers. Green said he'd be open to a supergroup featuring all four: ''Why not? ... Everybody's talented. Everybody's available and highly enthusiastic.''