The duet speaks from the infinite but tragic love concerning Chang'e and Houyi, that are determined by the Chinese myth from the moon goddess, on which the film relies on. Among a lot of artists who've recorded variations of "Always and Forever" may be the American R&B vocal team Whistle, https://always-and-forever-mine65310.liberty-blog.com/37284923/5-simple-statements-about-always-and-forever-explained