Michael Bublé has admitted that he turned down the chance to be a coach on The Voice US 15 times because “most of the singers are better than” him.

The crooner made his debut on the NBC show last night (September 23) after signing up for its 26th season.

Along with Snoop Dogg he joined returning coaches – country superstar Reba McEntire and Gwen Stefani.

“My favourite part about it is, thank God we’re not judges,” Bublé told Today. “The other shows have judges. We are coaches. And the reason I say that is because most of the singers are better than me, and I have no place ever judging anyone.

“To get to coach them and live the fantasy of having this career that I’ve had and then get to have the fulfilment of helping someone else get that? That’s the cool part.”

Bublé is the first Canadian pop star to be a coach on the popular talent competition. He also previously appeared in The Voice US as an advisor to the country star Blake Shelton’s team in season three in 2012.

“I know that this is a TV show, and I know that there’s a game involved and that each of us are playing a part, but I can tell you this, it’s not a game for any of us.” he said. “We know that each of these people, this is their life, their destiny, their dream. And we know that we’re a big part of this journey.”

He added: “We are not judges. Who are we to judge? We are coaches and we hope that we can bring our experience and the love we have for music and the passion into making them better artists and helping them in this journey.”