an Entity references as follows:
"Maybe He'll Know" is the fifth and final single from American singer Cyndi Lauper's album, True Colors, released only in Europe in 1987. It is a remake of a song that Lauper recorded with her former band, Blue Angel. The two versions are slightly different lyrically in a few lines. Billy Joel joins Lauper in 'doo wop' style back-up vocal duties.