Outspoken rocker Liam Gallagher has branded his brother Noel a phony over his duet with their former arch-enemy Damon Albarn.

The ex-Oasis stars famously endured a rivalry with Albarn and his Blur bandmates in their 1990s heyday but guitarist Noel put the long-running feud behind him in March (13) when he joined the Parklife singer onstage at a charity show in London.

Liam took a sly swipe at his brother on Twitter.com over the performance, but now he has spoken out to accuse Noel of faking his newfound friendship with Albarn.

He tells NME magazine, "That was b**locks. If you think that was genuine you must be living on the f**king moon. Why do I know that? Because I know my brother. That's how I feel. He's full of s**t. I think Damon's alright... But you know our kid (Noel). It'll be Robbie Williams next."