Girl group Little Mix unveiled a stunning set of new promotional images for their USA Pro campaign this week and the company is now offering fans based in the UK a chance to win a sports bra signed by the 'Black Magic' beauties. 

To be in with a chance of winning, all you have to do is click here and fill in the required information and answer the simple question. Entries will close on Friday, July 15 at 2pm and the winner will be notified on July 15 at 5pm on the USA Pro Facebook page.

Member Jade Thirlwall spoke about their USA Pro range this week: "In Little Mix we're all different body shapes and we've all got different ideas about how we like to stay fit. But with such a busy schedule of gigs and appearances it's important to choose an exercise regime that is user-friendly and realistic. Being comfortable and confident when you work out is so important."

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