Who also was male vocalist on a different recording of a 1983 song written and performed by Paul McCartney and Michael Jackson?
Duet All Night Long:  On "Say Say Say", however, the male vocalist is Scott Klopfenstein (the backing singer and trumpeter of Reel Big Fish) instead of Aaron Barrett. Say Say Say: "Say Say Say" is a song written and performed by Paul McCartney and Michael Jackson, released in 1983.
Scott Klopfenstein