Joni has participated in, or been featured on a number of recordings by other singers and songwriters.
All are included on this list. Several unique, Remixed Joni Mitchell Songs and Singles are also included.

LEAD Vocal — HARMONY Vocal — COMPLETE List

1968

   Radio Spots – 1st Album — — Reprise PRO 280

1969

   Radio Spots – CLOUDS Album — — Reprise PRO 333
   Both Sides Now (Joni) — The Johnny Cash TV Show — The Johnny Cash Show 01 • 02
   I Still Miss Someone (Joni & Johnny Cash) — The Johnny Cash TV Show — The Johnny Cash Show 01 • 02
   Long Black Veil — Johnny Cash & Joni Mitchell — The Best of The Johnny Cash TV Show 1969-1971 (DVD)
   The Gallery / Long Black Veil (Joni / Joni & Johnny Cash) — The Johnny Cash TV Show — The Johnny Cash Show 05 • 06
   Our House (Demo) — Graham Nash (w/ Joni Mitchell) — Deja Vu - 50th Anniversary (Edition)

1970

   AM Radio Spots – LADIES OF THE CANYON Album — — Reprise PRO 390
   FM Radio Spots – LADIES OF THE CANYON Album — — Reprise PRO 389
   Big Yellow Taxi — Joni Mitchell — Message To Love: The Isle Of Wight Festival - 1970
   Woodstock — Joni Mitchell — Message To Love: The Isle Of Wight Festival - 1970
   Girl Of The North Country — The Johnny Cash & TV Show — The Best of The Johnny Cash TV Show 1969-1971 (CD)

1971

   Will You Love Me Tomorrow — Carole King — Tapestry
   Laughing - Outtake — David Crosby — If I Could Only Remember My Name
   Laughing — David Crosby — If I Could Only Remember My Name
   Laughing - Isolated Joni Mitchell 'Harmony' Vocal — David Crosby — If I Could Only Remember My Name
   What Are Their Names — David Crosby — If I Could Only Remember My Name
   Love Has Brought Me Around — James Taylor — Mud Slide Slim & the Blue Horizon
   You've Got A Friend — James Taylor — Mud Slide Slim & the Blue Horizon
   Long Ago And Far Away — James Taylor — Mud Slide Slim & the Blue Horizon
   Vegetable Stew — Seemon & Marijke — Son Of America

1972

   Blue River — Eric Andersen — Blue River
   Simile — Jimmy Webb — Letters

1973

   Another Sleep Song — Graham Nash — Wild Tales
   Sing My Songs To Me — Jackson Browne — For Everyman
   Making A Way — Rod Taylor — Rod Taylor
   Something Old — Rod Taylor — Rod Taylor
   Raised On Robbery — Joni Mitchell w/ Neil Young & The Santa Monica Flyers — Neil Young Archives Vol. II
   Raised On Robbery (Alternate Mix) — Joni Mitchell — Elektra/Asylum Fall 1973 Releases
   You Turn Me On, I'm A Radio — Joni Mitchell — Public Service (Religious) Broadcast

1974

   Feet In The Sunshine — Jimmy Webb — Lands End
   Dida — Joan Baez — Gracias a La Vida
   Blue — Paul Horn — Visions
   Love Poem — Tom Scott & The L.A. Express — Tom Cat

1975

   Lover, Lover, Lover — David Blue — Com'n Back For More
   Dida — Joan Baez — Diamonds & Rust
   Liza, Light The Candle — Eric Andersen — Be True To You
   Woman, She Was Gentle — Eric Andersen — Be True To You
   Can't Get You Out Of My Life — Eric Andersen — Be True To You
   The Blues Keep Fallin' Like The Rain — Eric Andersen — Be True To You
   Love Is Just A Game — Eric Andersen — Be True To You

1976

   Radio Spot – Hejira — — Elektra Radio Spot – Open Reel
   Nordic Winds — L.A. Express — Shadow Play
   Helpless — Neil Young w/ Joni Mitchell — The Last Waltz
   Coyote — Joni Mitchell — The Last Waltz
   Shadows And Light — Joni Mitchell — The Last Waltz
   Furry Sings The Blues — Joni Mitchell — The Last Waltz
   Acadian Driftwood — The Band — The Last Waltz
   I Shall Be Released — The Band — The Last Waltz

1981

   Nexus — Dan Fogelberg — The Innocent Age

1982

   Blue River — Eric Andersen — Live At The Mudd Club
   Love — Joni Mitchell — LOVE (Soundtrack): The Black Cat In The Black Mouse Socks

1985

   Only One — James Taylor — That's Why I'm Here
   Tears Are Not Enough (3:56) — Northern Lights (Canadian All Stars) — 7" 45 rpm Single
   Tears Are Not Enough (5:17) — Northern Lights (Canadian All Stars) — 12" 45 rpm Single
   Tears Are Not Enough — Northern Lights (Canadian All Stars) — We Are The World (Benefit Album)

1986

   Right As Rain — Daryl Hall — Three Hearts In The Happy Ending Machine
   Who Owns This Place? — Don Henley — The Color Of Money - Original Motion Picture Soundtrack
   Shiny Toys (Extended Remix) — Joni Mitchell — 12" 45 rpm Single

1988

   Wayfaring Stranger — Joni Mitchell — Iguana (1988 film)

1989

   Big Harvest — Indio — Big Harvest
   Hard Sun — Indio — Big Harvest
   My Eyes — Indio — Big Harvest
   Spirit Of The Forest — Spirit Of The Forest — Earthrise • The Rainforest Album

1990

   Liberty Lies — David Baerwald — Bedtime Stories
   Goodbye Blue Sky — Joni Mitchell — The Wall - Live In Berlin 1990
   The Tide Is Turning (After Live Aid) — Roger Waters and Company — The Wall - Live In Berlin 1990

1991

   Radio Spot – Night Ride Home — — Geffen Records - Cassette Promo

1992

   Object Of My Affection — Shawn Colvin — Fat City

1993

   Big Yellow Taxi (Traffic Jam Mix) — Joni Mitchell — Friends (Soundtrack)

1994

   If I Could — Seal — Seal
   Just Like This Train — Joni Mitchell — Rare On Air: Volume 2 live sessions from KCRW's Morning Becomes Eclectic
   Moon at the Window — Joni Mitchell — CD Single - Bonus Track
   How Do You Stop (Radiomix) — Joni Mitchell — CD Single

1995

   Spirit Of The Forest — Spirit Of The Forest (Various Artists) — Official Earth Day Single

              BIG YELLOW TAXI - Joni Mitchell - Compact Disc Maxi-Single
              1. Radio Mix
              2. LP Version
              3. Late Night Club Mix
              4. N.Y. Cab To Club Mix
              5. Double Espresso NRG Mix
              6. Tribal Dub
              7. Original A Cappella With Guitar

1996

   Man From Mars — Joni Mitchell — Grace Of My Heart (Soundtrack)
   Man From Mars — Kristen Vigard — Grace Of My Heart (Soundtrack)

1997

   Got 'Til It's Gone — Janet Jackson (featuring Q-Tip and Joni Mitchell) — The Velvet Rope
   Got 'Til It's Gone (Def Radio Mix) — Janet Jackson (featuring Q-Tip and Joni Mitchell) —

1998

   Summertime — Herbie Hancock w/ Joni Mitchell — Gershwin's World
   The Man I Love — Herbie Hancock w/ Joni Mitchell — Gershwin's World
   Trouble Man — Kyle Eastwood w/ Joni Mitchell — From There To Here
   The Magdalene Laundries — The Chieftains w/ Joni Mitchell — Tears Of Stone
   Stormy Weather — Joni Mitchell — Stormy Weather -A Concert For The Benefit Of The Walden Woods Project and The Thoreau Institute

1999

   Steadfast — Brian Blade Fellowship — Perceptual

2003

   Two Grey Rooms (Demo) — Joni Mitchell — The Complete Geffen Recordings
   Good Friends (Demo Version) — Joni Mitchell — The Complete Geffen Recordings
   It's All Over Now Baby Blue (Demo Version) — Joni Mitchell — The Complete Geffen Recordings

2007

   Tea Leaf Prophecy — Herbie Hancock w/ Joni Mitchell — RIVER: the joni letters

2008

   River (Live) — Herbie Hancock w/ Joni Mitchell — Then And Now: The Definitive Herbie Hancock
   River (Live) — Herbie Hancock w/ Joni Mitchell — Then And Now: The Definitive Herbie Hancock (Deluxe Edition CD/DVD)
   Hana (Live) — Herbie Hancock w/ Joni Mitchell — Then And Now: The Definitive Herbie Hancock (Deluxe Edition CD/DVD)