The duet speaks of the infinite but tragic like involving Chang'e and Houyi, that are depending on the Chinese myth from the moon goddess, upon which the movie relies on. Between numerous artists who may have recorded versions of "Always and Forever" could be the American R&B vocal group Whistle, https://always-and-forever-mine48271.eedblog.com/37295237/5-essential-elements-for-always-and-forever-mine