Favorite Collaborations


Your favorite collaborations.  Not song writers who compose together (Lennon, McCartney; Becker, Fagen....).
Two or more extraordinary talants who come together to create  extraordinary music.
Some of my favorites
Joe Sample, Randy Crawford
Linda Ronstadt, Nelson Riddle
Johnny Hodges, Billy Strayhorn
Jobim, Sinatra/ Jobim, Gal Costa 

mas1951
Duane Allman, Greg Allman and Dickie Betts in the Allman Brothers Band! They set the template for Southern rock to follow!
roberjerman,
Those are bands you’re mentioning. I think that the OP meant temporary collaborations. He even said not artists who composed music together. 
@roxy54 : No, the OP has listed some old/past time artists! I'm listing some whose contributions together were essential to the bands they were in!
Miles Davis and Herbie Hancock! Jazz giants that took the form into the future!