London, July 23 : Oasis singer Liam Gallagher recently challenged a fan to a fight before the band even began to perform in London.

The frontman reportedly launched a foul-mouthed bust-up against the mystery man after a coin was thrown at him as he stepped on stage.

The rocker was said to have "targeted" the unknown audience member throughout the gig, tagging him a "sh*tbag", a "f*cking uni boy", and blasting, "Hope it''s f*cking moody for ya. You pay peanuts, you get monkeys on crack," reports The Daily Star.

Liam's brother and fellow band member Noel later apparently told the crowd: "We''d like to do a slow number for you so we could all just calm down. Everybody just take a deep breath, pretend it''s not happening."

He even mentioned the incident in his online blog, saying: "Well that gig at The Roundhouse was... erm... very odd. What''siz''name (Liam) exploded with pretend rage the minute he walked on. Strange cat. Probably on his man period. Saying that, it was a full moon ''n'' all. Didn''t notice him getting any more hairy though. Mind you, those that were there seemed to enjoy it, so... y''know, onwards and sideways." (ANI)