Kelly OsbourneKelly OsbourneWhen you gotta go, you gotta go.

And nobody should stand in your way.

Ain't that right, Kelly Osbourne?

Somebody rubbed her up the wrong way as she queued for the toilet.

But don't think she didn't give the chappy a piece of her mind.

She let rip at a guy who accused her of being a "sad Kelly Osbourne impersonator" on a night on the tiles at Paper nightclub in London.

Kelly snapped: "I am Kelly Osbourne, you American idiot."

The man pointed out he was Canadian before storming off.

Game, set and match.