Nicole Richie, Anne Hathaway and Kerry Washington all shocked on the red carpet at the Met Ball with dramatic new hair colours.
Nicole Richie has dyed her hair grey.
The 31-year-old fashion designer showed off her newly-silver tresses at the Met Ball at New York's Metropolitan Museum of Art last night (06.05.13), sticking to the Costume Institute Gala's 'Punk: Chaos to Couture' theme by matching her updo and white Topshop column dress with a red and gold manicure, multiple gold earrings and a dark burgundy lip.
Nicole - who has five-year-old Harlow and three-year-old Sparrow with husband Joel Madden - had earlier teased fans about her change of look, posting pictures of hair extensions lying on a bush and a bowl of dye onto her Instagram account.
Alongside the pictures, she wrote: ''Even the bushes have extensions! Happy Met Ball Monday!
''Hair Time #MetBall (sic)''
And the 'Fashion Star' host wasn't the only star to change their hair for the annual fashion extravaganza.
Anne Hathaway - who shaved her head for her role in 'Les Miserables' - showed off a short blonde crop, which she admitted she wanted to keep forever, though she knows she'll have to revert back to her famous dark tresses soon.
Anne - who wore black vintage Valentino - said: ''It's temporary. But as soon as I did it, I thought I didn't want it to be temporary any longer. I know I have to dye it back for my work.''
And Kerry Washington teamed her low-cut purple, black and blue Vera Wang gown with long leather gloves and purple streaks in her hair.
She said: ''In honour of Vera's design I put all these purple highlights in my hair to have a punk moment. I've never done anything like this before in my life!''