The pop singer's pink hair goes to her head!

Brit pop sensation LILY ALLEN ("Smile") stole the show Tuesday at London's Glamour "Women of the Year" Awards with her cotton-candy pink hair and matching dress -- which featured pics of Bambi with a slit throat gushing blood. (Yikes!)

The singer, who was there to collect the Editors' Choice Award, told reporters that she dyed her hair "in my own bathroom" that day. But harder to explain was why she had to be carried out of the awards show by a bouncer later and put into a waiting car.

She gave it a go on her MySpace blog, writing: "I got very drunk last night, too drunk. It's not cool getting that drunk, I feel awful and I have to thank my little brother ALF for getting me home safely. Kids, drink responsibly or you'll end up looking like this, not pretty!"