Maren Morris and Alicia Keys teamed up for an awesome duet during the 2017 Grammy Awards as they performed 'Once'...

This isn't the first time they have performed together. They recently teamed up for an episode of CMT’s Crossroads.

Morris won a Grammy for Best Country Solo Performance with her hit debut single 'My Church.'

Maren has become not only a country sensation, but also a successful cross-over artist, thanks to the pop, soul and R&B influences evident in her music.

This year marks the first time Morris has ever been nominated for a Grammy. Along with Best Country Solo Performance, Morris was nominated for Best New Artist, Best Country Song for 'My Church' and Best Country Album for Hero.

Take a moment to enjoy Maren Morris & Alicia Keys as the above video captured their live performance of 'Once' on Sunday's Grammy Awards!