Little Mix's X Factor mentor Tulisa Contostavlos revealed her pride at the girl group after they released their new video.

As previously reported, Little Mix yesterday (July 25) unleashed the promotional clip for their latest single, 'Wings'.

Tulisa, who guided Little Mix through the X Factor before they won the show in late 2011, took to Twitter soon after the video's release to speak of her pride. She said:

"@LittleMixOffic SO PROUD OF YOU GIRLS!!! Xx - Guys check out my little muffins video for Wings!"

Little Mix meanwhile have been making One Direction fans across the world salivate with anticipation after revealing that they have heard a new song from the boyband.

They said that the track was "brilliant" and that fans would love the song.