The Michael Jackson Estate just released the next song on CD2 of Thriller 40: “Can’t Get Outta The Rain”
“This song was co-written by Michael and Quincy and, although it wasn’t released on the ‘Thriller’ album, it was the B-side of the first single for the album, “The Girl Is Mine.””
Note that the song is also an pre-“Off The Wall” era song (The Wiz) and was also B-side for “Billie Jean” and “Thriller” singles in some parts of the world in the 80s and later on the Ultimate Collector.