P Diddy has revealed a very unusual phobia - he's scared of long second-toes.

The rapper told shocked talk show host Jay Leno of his fear when he appeared on his show alongside actress Kate Beckinsale.

P Diddy, real name Sean Combs, refused to look at Beckinsale's legs as she sat next to him wearing a little black dress and strappy heels.

He looked away in disgust when she moved her foot towards him as the three discussed their fears and phobias.

Combs explained that his fear is of a second toe that is much longer than the first toe.

Turning away from the 35-year-old actress, Combs, 39, said: "I have this foot thing... I really fear a long second toe.

"I'm not saying you have one, I can't see yours but if you do..." to which Beckinsale interrupted, "I don't!".

Squirming in his chair, Combs replied: "I know you don't!" but shifted further away in his chair when the actress moved her foot up towards him, and he looked away in fear with his hands out in front him.

She joked: "You won't even look at it!"

Diddy, who was on the show promoting his new aftershave I Am King, was alsoasked by Leno whether it would be a problem if a girl he is dating has a long second toe.

He answered: "I'm going to be honest with you here. I somehow get to see the toe on the first date - it's mandatory.

"I may not go for a kiss but I'm definitely going to see if that second toe is long."