If you want to see James Corden shed some tears, just ask Stevie Wonder for help. In the latest installment of "Carpool Karaoke," the singing icon took a ride with the late-night host for a little on the road jam session.

During the almost 11-minute karaoke ride, the twosome called up some love ones and jammed out to a few familiar tunes like "Isn't She Lovely," "Superstition," "Sir Duke," and "Signed, Sealed, Delivered I'm Yours." But the real highlight came when Steve churned out an a capella version of "I Just Called to Say I Love You" to James' wife Julia over the phone. This bit got the host super emotional, and it was surely a sight to see. 

"Oh my God. You've just bought me so many brownies points with my wife," he told the singer after hanging up the phone. 

The duo went on to joke about playing the harmonica and teaming up for a brand-new band called The Wonder Cats. Stevie's appearance on "Carpool Karaoke" served as promotion for his just-announced 20 tour dates to his Key of Life Performance Tour. 

Photo: YouTube