Who sang Carey with Joni Mitchell?

Answer 1

After some quick research, there is no evidence, not even a hint, that anyone every recorded a duet with Joni Mitchell singing her song "Carey."

The song has been performed or recorded by others, but none with Joni Mitchell.

"Carey" is found on three Joni Mitchell albums: Miles of Aisles (1974), Hits (1996), and Dreamland: The Very Best of Joni Mitchell (2004). It has been performed or recorded by Cyndi Lauper, Goldie Hawn, Universal Honey, Sara Gazarek and Kiki Dee.