Lily Allen likes dirty hair

The 'Smile' singer, who is the face of Braun's Satin haircare range, prefers her brunette locks when they haven't been washed. Lily said: "My hair is naturally straight, but it looks longer when it is sleek. "Sometimes I use a certain spray because I prefer it when my hair looks a bit dirty - like day-after hair."

The 22-year-old star also revealed she will never move Stateside because US women are too "high-maintenance". Lily said: "You feel like a complete state in the US if you don't make an effort.

I remember getting a manicure in New York and this lady who was having a forearm wax, which I'd never even heard of before, looked at me and said, 'You will need one soon.' I was like, 'No! What are you talking about?'

"They make you feel really bad about yourself unless you are completely pruned everywhere. I hate that modern way of thinking that you have to go to the gym 10 times a week, you can't eat this and you can't eat that and you should get a spray tan. "All that preening makes you look worse anyway."