What is the Most Popular song sung by two separate A-list singers, who have their own very successful separate careers in their own right?

Answer 1

Let me think.

One really good track is Elton John and Billy Joel doing "I Guess That's Why They Call it the Blues" live. They did a concert tour together, and did a lot of each other's material together, but that's my favorite track.

"Stop Draggin' My Heart Around" is another really good song. That's Stevie Nicks and Tom Petty. And here are a few of my other favorites.

Up Where We Belong, from the movie "An Officer and a Gentleman"--Joe Cocker and Jennifer Warnes.

I've Had the Time of My Life, another song from a film, "Dirty Dancing," and another song featuring Jennifer Warnes, this time with Bill Medley (one of the Righteous Brothers.)

On My Own--Patty LaBelle and Michael McDonald (Doobie Brothers)

Where is the Love--Roberta Flack and Donny Hathaway

You're the One that I Want, from "Grease"--Olivia Newton-John and John Travolta.

Ain't Nothing Like the Real Thing--Marvin Gaye and Tammi Terrell

And my personal favorite, featuring Otis Redding and Carla Thomas.....

https://www.youtube.com/watch?v=VbeMPBbKPjs