The singer will mentor the team led by new coach Pharrel Williams. She tweeted the good news last night saying she was happy that her friend invited her to jion his team and that she was more than happy to accept.
She will join the likes of Gavin Rossdale, Stevie Nicks and Little Big Town, a country music group.
The season seven begins on Steptember 22nd at 9pm.
Will you be watching?