So far superstars Michael Buble and Mary J. Blige have signed on to mentor the new season of The Voice, but who’s the next celebrity to join the mentoring team?

Rob Thomas, the lead singer of rock group Matchbox Twenty, will mentor Cee Lo Green’s team on the upcoming season.

“I’m really excited to work with Cee Lo and love the idea that I may be in the room with a future superstar that the world has yet to discover,” says Rob.

Michael Buble will mentor Team Blake, and Mary J. Blige will be on board with Team Adam.

No word yet on who will mentor Christina Aguilera’s team. The new season of The Voice premieres September 10th on NBC.