Selena Gomez ‘the favourite’ for The Voice US

Selena Gomez is reportedly the “backstage favourite” for a The Voice US mentor role.

The TV singing competition is entering its ninth season on air, with Gwen Stefani, Adam Levine, Blake Shelton and Pharrell Williams returning to their posts as judges in the forthcoming episodes.

And it’s claimed the celebrity mentors have already been chosen.

“Selena Gomez will be Gwen Stefani’s mentor. John Fogerty will be Adam Levine’s. Brad Paisley is Blake Shelton’s, and Missy Elliott is Pharrell [Williams]’s,” a source told Us Weekly magazine. “[Selena] was surprisingly amazing as a mentor even though she’s so young. She exceeded everyone’s expectations.”

The group are joining a number of high-profile previous mentors that include Lionel Richie, Meghan Trainor, Ellie Goulding, Alicia Keys, Gavin Rossdale and Stevie Nicks.

Adam is said to be elated about the prospect of spending time on set with John, the famous guitarist for classic rock band Creedence Clearwater Revival.

Apparently the Maroon 5 crooner has “always wanted to work with Fogerty” because he thinks the 70-year-old musician is a “legend”.

Blake recently divorced from his wife of four years Miranda Lambert, a fellow country singer.

It’s claimed he chose Brad as his team mentor for personal reasons.

“Brad was a good friend to Blake, and it was great for Blake to have him there — especially considering everything Blake is going through,” the insider noted.

The ninth season of The Voice US will broadcast on NBC in America starting September 21.