Bono clucks like a chicken before U2 gigs

It's not unheard of for artists to have some odd rituals before they go on stage.

Some mediate, others group hug, a few pray and a one or two have been known to get steaming.

Bono does none of those - the U2 frontman's warm-up is a series of "animal noises".

The singer, who is on the band's current 'Innocence + Experience Tour', admits he prepares his vocal cords by shouting, singing and emitting chicken-like clucks before taking to the stage.

"I make animal noises before I go on stage," Bono admitted to Chris Moyles on Radio X. "I've heard other singers, and people you really admire in the TV studio, doing the same thing. I could never do that, I couldn't do it in public, but I do now. I make those clucking sounds. If you happen to be in a bathroom near U2's dressing room, that might be me."

However, he will only do his warm up routine on his own as he'd be embarrassed if anyone saw him going through his pre-gig ritual.

We wonder if he lays eggs too...