Two of the biggest names and voices in music today joined for a powerhouse and moving performance.

Kelly Clarkson and Josh Groban have been stunning audiences with their booming, powerful voices for decades. They have sold millions of albums and played in front of sold-out arenas all over the country. They are, without a doubt, superstars in the entertainment field.

However, while their music is very different from each other, Kelly and Josh could sing any kind of music beautifully. They are both just so incredibly talented. Both could sing the phonebook and likely sell out stadiums.

So, what would happen if these two immensely talented musicians combined their one-of-a-kind voices for a duet? A clip posted to YouTube answers that question. Josh and Kelly sang “All I Ask of You” during a CBS holiday special a few years back. The results are just as spectacular as you would have guessed, maybe even more so.

Josh and Kelly stand in the center of a small circular stage, several audience members are seen sitting around the stage. The performance, mainly due to the small stage, feels much more intimate than normal. Instead of the typical arena or stadium setting, viewers are much closer to the performers.

As their song concludes, the studio audience explodes in thunderous applause and cheers. Their performance was simply beautiful and elegant. Even if you don’t particularly like their kind of music, it’s still easy to recognize and appreciate their abundance of talent.

Josh and Kelly made their performance look so mind-blowing effortless, not appearing to strain or even really try. These two are seasoned professionals who know how to use their voices to maximum effect.

The short, less-than-four-minute clip ends with the two talented musicians sharing a warm embrace.