Grammy Award winner Gwen Stefani will join the previously announced Pharrell Williams as a coach on the upcoming seventh season of the singing competition "The Voice." NBC said Tuesday that Stefani, a multiplatinum singer both solo and with her band No Doubt, and fellow Grammy-winner Williams will each perform a song on Monday's live show. "The Voice" executive producer Mark Burnett tweeted his congratulations, saying "Welcome to 'The Voice' family!" Stefani herself tweeted, "It's true!"

Season seven begins shooting in June, with Adam Levine and Blake Shelton returning as coaches.