The Little Mix girls are getting an early start on New Year resolution health kicks by unveiling their new modelling images for a gym wear brand.

The ‘Black Magic’ girl band members are the new faces of USA Pro sportswear and have been photographed wearing a line of gym clothing that is designed by women for women (see images below).

Perrie Edwards, Jesy Nelson, Leigh-Anne Pinnock and Jade Thirlwall show off their gym-honed figures in a series of images that see them wearing lycra leggings, crop tops and vests.

An accompanying television advert for Little Mix’s USA Pro campaign is due to air in January.

Speaking about her personal choice of sportswear, Perrie stated: “Everyone's individual in the way they exercise but we all want to look good whatever we're doing. I'm as likely to wear USA Pro when grabbing a coffee as I am in the dance studio.”

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Check out some of Little Mix’s best live performances of 2015 below: