"Another Lonely Night" hitmaker Adam Lambert has revealed that fellow 'X Factor Australia' judge Iggy Azalea is a little bit of a diva on set.

Chatting to Sunrise this week, the vocal sensation admitted that she sometimes turns up to work late, but he was quick to stress that there's no bad blood between them at all:

"To be honest with you, I have no personal issue with Iggy. She and I have found some common ground. But she is quite a diva. She shows up late, you never know what you're going to get with her. It is never boring. I will tell you that. 'There were couple of times where I was like, 'Girl, where the hell are you?'"

Lambert, meanwhile, recently told Seven Days magazine that he and the other judges are becoming more comfortable around one another, which adds to their dynamic as a panel: "It's funny because I think as we've got more comfortable with each other we are more likely to call each other out. I noticed the last trip down there, towards the end we were really at each other a little bit more, which is good."

Follow us: @Pressparty on Twitter / Pressparty on Facebook.

Watch Adam Lambert in action here: