Well, we say covered up… her gown featured a sexy thigh high split down the side and was backless when she turned around.
Pixie's dress was by DKNY and she was clearly thrilled about it, tweeting en route to the ceremony: "Love the simplicity."
She added some 'feline eyes' as a finishing touch, courtesy of make-up artist Caroline Barnes.
'Boys and Girls' singer Pixie is usually seen out and about with model boyfriend Oliver Cheshire, but she walked the red carpet at London's O2 Arena on Wednesday night (19 February) solo.
More photos from the Brits 2014 red carpet below!
Copyright: WENN Lia Toby