The girl group co-wrote a new song titled 'Going Nowhere' with the Girls Aloud star, which features on their forthcoming collection DNA.
The track features raps and beat-boxing, according to The Sun, who say the girls and Roberts worked together in the studio on the song.
Former All Saints singer Shaznay Lewis has also contributed to the collection, while TLC's T-Boz wrote and features on new cut 'Red Planet'.
Little Mix's debut album DNA will be released in the UK on November 19.
It will be preceded by their new single 'DNA' on November 11.
Listen to Little Mix's new single 'DNA' below: