Taking beauty tips from Julia Roberts! Pixie Lott arrives at Dark Knight Rises premiere with hairy armpits

She's one of the most fashion-forward members of the music circuit, and is rarely seen putting a foot wrong when it comes to her outfit choices.
But as Pixie Lott attended the London premiere of The Dark Knight Rises last night, she appeared to have forgotten one very important part of her grooming routine.
As Pixie posed up with her hand on her waist at the premiere in London's Leicester Square, her unshaven armpits were clear to see.

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Forget something? Pixie Lott appeared to have taken beauty tips from Julia Roberts as she forgot to shave her armpits ahead of The Dark Knight Rises premiere in London last night

The 21-year-old singer unwittingly drew attention to her hairy underarms as she smiled for the waiting photographers eager to take her picture.

Au naturel: Pixie drew attention to her faux pas by putting her hand on her waist

Perhaps Pixie was taking some styling tips from Julia Roberts, who shocked fans with her underarm hair growth at the premiere of Notting Hill back in 1999.
Other stars to have gone au naturel in the past include Beyoncé, Britney Spears and Sharon Stone.
Despite Pixie's grooming faux pas, the singer looked stylish in her aquamarine dress at the premiere, which was also attended by the movie's stars Christian Bale, Anne Hathaway and Marion Cotillard.
However, Pixie can't have been aware that Made In Chelsea star Kimberley Garner would choose a very similar aquamarine halterneck dress to wear to the event.
But while Kimberley showed off her slender figure in the outfit, Pixie went for a more modesty approach, and covered up her cleavage in the long dress.
Pixie, who has designed numerous collections for high-street store Lipsy, spoke previously about her fashion sense, and said she doesn't feel the need to shed her clothes to attract attention.

Causing a stir: Julia Roberts hit the headlines in 1999 when she went for the natural approach for the 1999 premiere of Notting Hill

She said: 'Sexiness definitely comes from the inside, though – if you feel comfortable, you feel sexier and more confident.

;But if you’re wearing something you’re not sure about, you end up feeling self-conscious, and I think that shows.
'I’ve definitely grown up a lot although I think my identity is still the same. I always had quite a strong sense of what I liked and didn’t like and I don’t think that has changed.'

Spot the difference: Pixie's aquamarine dress was very similar to the one worn by Kimberley Garner