Alicia Keys has been revealed as a new mentor for The Voice's upcoming seventh season in the US.

The singer confirmed the news that she will work with Pharrell Williams's team this autumn.

She tweeted: "My friend @Pharrell invited me to be a mentor for his team on #TheVoice! His team killed it ;-) #AliciaKeysonTheVoice."

Williams replied: "Can't wait @aliciakeys."

It was recently revealed that Gwen Stefani would mentor her husband Gavin Rossdale's team, while Fleetwood Mac star Stevie Nicks will work with Team Adam Levine.

Little Big Town will mentor Blake Shelton's team for the next season of NBC's singing show, which returns in the US on September 22.