Guy Sebastian has nothing but praise for fellow X Factor Australia judge Adam Lambert. 

He visited Sony Music Australia recently to promote his new single "Set In Stone" and ended up chatting about Lambert's phenomenal vocal ability:

"I wouldn't say no to something with Adam. He's one of the most incredible male vocalists I've ever heard. That guy hits silly notes that no human should be... [...] Adam's like... he's like, woah. You don't sing Freddie Mercury unless you've got a ridiculous voice!"

Earlier this month, Adam Lamberttold news.com.au that there's a "sibling rivalry" vibe among the popular TV talent show's panel:

“It’s hard to explain. It’s almost like a sibling rivalry, healthy competition between all four of us. We tease each other so much backstage and it’s funny. We try to mess with each other in all ways. We make little digs on camera and backstage and I think we all get that this is a great, fun competition.”

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Watch Guy Sebastian's video for "Set In Stone" here: