Keith was credited on several albums throughout the 1980s and 1990s. She is well known for her background vocals being featured on work by Janet Jackson, Alexander O'Neal, Karyn White, New Edition, and S.O.S. Band, plus other acts produced by Jimmy Jam and Terry Lewis (as well as lead vocals on the chorus of MC Lyte's 1993 single "Ice Cream Dream"). In the late 1980s she also fronted a live Minneapolis Funk band called Rocket (whose members also included producer/session musician Shaun Labelle and drummer John "Bam Bam" Morgan).
In addition to working as a backing vocalist, Keith has also co-written several songs for other artists; such as New Edition's "Crucial" and Nona Hendryx's "Why Should I Cry".
"Love Isn't Body... It's Soul" (James Harris III, Terry Lewis, Tim Curtis, Tony Addis, Beresford Romeo)
"Better Than You" (Keith Thomas, Lisa Keith)
"Love Is Alive and Well" (Spencer Bernard, Lisa Keith)
"I'm in Love" (James Harris III, Terry Lewis, Lisa Keith)
"Days Like These" (Louis Biancaniello, David Harper)
"Love for All Seasons" (Bob Johnston, Spencer Bernard, Lisa Keith)
"World of Joy" (Spencer Bernard, Lisa Keith)
"Sunshine Daydreamin'" (Jarvis Baker, Lisa Keith, Narada Michael Walden)
"Closer" (Spencer Bernard, Lisa Keith, Tim Curtis)
"Love Me Like You Do" (Spencer Bernard, Lisa Keith)
"Free as You Wanna Be" (James Harris III, Terry Lewis, Robert Womack, Henrik Rasmussen, Alonzo Evans, Alvin Marino, Horace Glenn, Joseph Thomas, Kirk Walker, Marvin Andrews, July, Quadri Wallace, Robert Hammond, Walter Simon)