The former Creedence Clearwater Revival frontman appeared on the show last season when he performed with winning singer Sawyer Fredericks, but now he will be offering up tips and advice.

Announcing the news on Monday (10Aug15), Fogerty said, "I'm just having the time of my life right now. Adam has an incredible voice and I am honoured that he asked me to join him.

"I have great respect for the amount of work that goes into this show and the contestants that I got to hear sing, really impressed me."