Mine-

What's Going On

I Want You

Praise

Sexual Healing

It Takes Two (duet w/ Kim Weston)

You

You're All I Need to Get By (duet w/ Tammi Terrell)

Ain't Nothing Like The Real Thing (duet w/ Tammi Terrell)

I Heard It Through the Grapevine

How Sweet It Is (to be loved by you)
I Heard It Through the Grapevine
What's Going On
Ain't Nothing Like the Real Thing
Mercy Mercy Me (The Ecology)
Let's Get It On

I just love his voice so smooth.

Another really good duet he did was My Mistake (Was To Love You) with Diana Ross. :D

He has so many great songs!

Lets Get It On
Sexual Healing
Whats Going On
How Sweet It Is
I heard it Through the Grapevine
Mercy Mercy Me

:D :)

Favorites:
Heard It Through The Grapevine
Whats Going On

Got To Give It Up
What's Going On
I Heard It Through The Grapevine
Sexual Healing