The duet speaks in the infinite but tragic love amongst Chang'e and Houyi, who're based on the Chinese myth of the moon goddess, on which the film relies on. Among the several artists who definitely have recorded variations of "Always and Forever" would be the American R&B vocal group Whistle, https://always-and-forever08531.dailyhitblog.com/42555762/what-does-always-and-forever-mine-mean