The two powerhouse singers got together for the duet before joining The Voice as Coaches.

Back in 2012, before their stints as Coaches on The Voice, vocal powerhouses Kelly Clarkson and John Legend joined forces for a soulful rendition of ”You Don’t Know Me” by Ray Charles.

During the cover, Legend crooned in a jazzy tone before Clarkson jumped in, hitting her signature belting notes perfectly. They then sang in unison, their voices gliding through the pleasant arrangement.

Listen to their gorgeous version here.

What to know about ”You Don’t Know Me” by Ray Charles

Originally written by Eddy Arnold and Cindy Walker in 1955, Ray Charles’ 1962 version reached the number-two position on the Billboard U.S. Hot 100. Charles’ version was released off his hit album Modern Sounds in Country and Western Music.

”You Don’t Know Me” has since been covered by Elvis Presley, Willie Nelson, Jackie Wilson, Roy Orbison, Bette Midler, Kenny Loggins, Kenny Rogers, Don McLean, Michael Bolton, Michael Bublé, and more.