Pharrell Williams has signed on as a new coach for U.S. TV talent show The Voice. The Happy hitmaker is taking over the spinning red chair once occupied by Cee Lo Green, who announced he would be leaving the show in February (14). Williams reposted the official announcement on Twitter.com on Monday (31Mar14), adding, "This is going to be so fun." Williams, who previously appeared on the show as a guest mentor for Usher's team in season four, joins the rotating schedule of coaches, with Shakira and Usher currently on the roster, filling in for Green and Christina Aguilera. Adam Levine and Blake Shelton have been fixtures on all seasons since the beginning. The Grammy winner will make his debut on the upcoming seventh season of the show, which will air in America this autumn (14). The Voice executive producer Mark Burnett says, "I am thrilled to have Pharrell come back to The Voice family, and this time... as a coach. Continuing in The Voice tradition of having the biggest and most current music stars as coaches, Pharrell fits perfectly."