Collins was asked to work with the British star, but the planned studio session fell through when Adele stepped away from the music industry to concentrate on motherhood.
Adele is now on the verge of a comeback, and a new report suggests she is keen to complete her duet with Collins.
A source tells Britain’s Daily Mirror newspaper, “Over the past few months, Phil has been working on the tracks once again. Adele put all her work on hold for a while, so it wasn’t anything personal. It was just delayed. She did tell Phil that she was prioritising her personal life at the time, but now that she’s back on track in work mode their track is happening once more.”