Little Mix have premiered their brand new music video for Sport Relief single, Word Up.

The promo sees the X Factor girlband exercise with a number of famous faces, including the likes of Spice Girls star Mel C, Louis Spence and Olympic gymnast Louis Smith.

When unveiling the promo, Perrie, Leigh-Anne, Jade and Jesy tweeted: "Here it is guys!!! Our video for our @sportrelief single #WordUp... Hope you love it."

Perrie previously said of the track: "We've all seen people push themselves and do incredible things for Sport Relief, so it's a dream come true to be releasing the official single this year."

The song - which is a cover of Cameo's 1986 hit - is due for release on March 16, and can be pre-ordered on iTunes now.