Ian Horne and Trevor Jones, two of Wings' , sang backing vocals on the track although their parts are buried in the mix.
Otherwise, the vocals consist primarily of Laine and Paul and all singing together, with Laine and Paul McCartney each taking a solo spot.
Because of fate, Man Chor Hubert Wu , Kwan-ho and fresh-faced and competent Szeto Lai-shun Joey Law become buddies, resulting in a happy sibling relationship gradually becoming incestuous.