Nova's James Mathison has quit as co-host of Australian Idol Network Ten says it's confident Andrew G can host Australian Idol on his own after co-host James Mathison quit.

Mathison, 31, hinted he was sick of the lifestyle as he revealed he'd leave the singing competition he's hosted since its first series in 2003. Network Ten said it was sad to see him go, but Andrew G was up to the task of carrying the hosting job alone.

Nova 969 said Mathison had no plans to give up his job hosting late night music program Launchpad Up Late with Patience Hodgson from The Grates.

"James is having a ball on Nova, and we're happy to give him the opportunity," Nova 969 program director Adam Williscroft said.

"He shares Nova's passion for new music."