Brittany MurphyBrittany MurphyYou know that person you know you shouldn't fancy but you do anyway?

Well, Brittany Murphy has revealed who her crush used to be.

One Mr Robin Williams - Oh Lordy, he's old enough to be her father.

At the premiere of her new movie, Happy Feet, in which one of her co-voices is Robin Williams, she said:

"When I was 14, I was asked who would be my Valentine crush.

"I was torn between Johnny Carson and Robin Williams.

"But I thought they would think I was crazy if I said Johnny Carson because he is so much older than me.

"So I went with Robin. He's so smart, funny and brilliant."

Yes Brit, because Johnny at the time was 66 to your 14 - which is so very wrong.

Robin WilliamsRobin WilliamsWhereas Robin was a mere 40.