Phoenix: "Phoenix (Henrit - Rodford - Verity)" (1976)
Michael does some vocals on this album.

Gene Simmons: "Gene Simmons" (1978)
Michael sings the chorus on the track "See you in your dreams".

Robby Romero & The Boys From Belen (1979)
Michael does some backing vocals on this album.

Phoenix: "In Full View" (1980)
Backing vocals by Michael on the track "Fooling Myself".

Suzi Quatro: "Rock Hard" (1980)
Michael does some backing vocals on this album.

Keel: "Final Frontier" (1986)
Michael sings together with Ron Keel on the track "Raised On Rock".

Don Johnson: "Heartbeat" (1986)
Backing vocals by Michael on the track "Coco Don't".

John Taylor: "I Do What I Do" (1987)
This song was co-written by Michael and he also does some backing vocals on it. Included on the "9 1/2 Weeks" movie soundtrack and released as a single.

E. G. Daily: "Seduction" (1987)
This song was written by Michael and included on the "Summer School" movie soundtrack.

Alisha: "Nightwalkin'" (1987)
Michael wrote the song "Girls Don't Lie" together with Paul Chiten. "Girls Don't Lie" was also recorded by George McCrae for his 1991 album "Rock Your Baby".

"Midnight Cabaret" (1988)
A musical production number narrated/sung by Michael in the movie of the same name, where he played the leading role.

Akina Nakamori: "Femme Fatale" (1988)
Michael wrote the song "Paradise Lost" together with Robert Etoll for this female Japanese artist. Released on LP and CD in Japan.

The Heat: "Too Far Too Fast" (1988)
Michael and Paul Chiten wrote this song, which was featured in the 1988 movie "Distant Thunder". It was also used in the 1991 movie "True Colors". In 2007 the song was included on The Heat's compilation CD "Untold Story Vol. 1" in two versions; "Movie Version" and "Original Version".

Masahiro Kuwana: "It's Only Love" (1988)
Michael wrote the song "The True Hearts" together with Jack Conrad for this Japanese rock singer. The song is also known as "The Truth Hurts". Released on LP, Cassette and CD in Japan.

Don Johnson: "Let it Roll" (1989)
Michael co-wrote the song "Angel City", which also appears on the re-release of Johnson's earlier album "Heartbeat".

"Cleo Rocks" (1989)
Musical production number sung by Teri Hatcher's character "Penny Parker" in the "MacGyver"- episode of the same name. Michael wrote the song's lyrics, and also appeared as Murdoc in the episode.

Various Artists: "Spirit of the forest" (1989)
Michael is among the many artists featured on this benefit single for Earth Love Fund. The song was later included on the CD and VHS-compilation "Earthrise" in 1992.

Various Artists: "HollyWord" (1990)
A compilation cassette of celebrities reading their own poetry. Michael reads the poem "Let's put the stones back together". Also includes a poem by Pamela Des Barres.

Various Artists: "The Christmas Album - A Gift of Life, Vol. 4" (1992)
Michael sings "Hark! The Herald Angels Sing" on this Christmas album, released by Children's Records to benefit "Hospitals for Children".

Michael Des Barres: "Wall of Sound" (1994)
Rock song performed by Michael as "Lenny Stoke" in the "Lois & Clark: The New Adventures of Superman"-episode of the same name.

Michael Des Barres: "Gravy Stain Girl" (1999)
Michael is the lead vocalist on this song, which was used in the movie "Sugar Town" where he plays the rock singer "Nick".

Swing Cats: "A Special Tribute to Elvis" (2000)
Michael is the lead vocalist on the songs "Can't Help Falling in Love" and "Steamroller Blues". Released on CD by Cleopatra Records.

Michael Des Barres: "Marquis De Sade - The Musical" (2001)
An ambitious rock musical written by Michael Des Barres and Roger Greenawalt. Was planned to be performed at the West Coast Ensemble Theatre in May 2001, but that never materialized. A 26- track demo CD was recorded, which features Michael on vocals or backing vocals on most of the songs.

Michael Des Barres: "Eve Of Destruction" (2004)
Michael provided the vocals on an updated version of Barry McGuire's classic 60's hit. With Billy Morrison, Steven Perkins and Chris Chaney on guitars, drums and bass. Produced by Billy Morrison and Michael. The song remains unreleased, but was played a few times on Indie 103.1's Camp Freddy Radio.

The Automatics: "Britannia" (2006)
Michael does some backing vocals on the title track of this album, released in June 2006. Michael and Automatics frontman Dave Philp also wrote several other songs during the recording sessions, which may be released at a later point.

Bellylove: "Peace, Love & Understanding" (2007)
Michael does the voice of the "American Idol"-judge on the opening track "I'm Too Old For American Idol".