Kelly Clarkson performs 'It's Quiet Uptown' with Billy Gilman live on 'The Voice'
The Voice / YouTube

Pop superstar Kelly Clarkson dropped by "The Voice" finale on Dec. 13. She performed "It's Quiet Uptown" with runner-up Billy Gilman.

"It's Quiet Uptown" is one of the songs from the mega-successful musical "Hamilton." Show creator Lin-Manuel Miranda recently released a mixtape from which the biggest artists in all different genres take on his tunes. Clarkson recorded "It's Quiet Uptown," one of the saddest songs where Alexander Hamilton and his wife grieve the loss of their son. She turns it into even more of a haunting moment with her powerful pipes. "Quiet" is anything but in Kelly's hands.

Clarkson hit "The Voice" stage to sing "It's Quiet Uptown" with one of the show's biggest voices, Gilman. Backed by piano and strings, the two delivered soaring performances. The world knows Kelly can knock a performance out of the park since her breakthrough on "American Idol" in 2002 and over a decade later, she is still slaying the small screen. Billy held his own in Clarkson's presence and had his moments of shine. Their soulful vocals gave new life to "Hamilton" tune.

Clarkson's version of "It's Quiet Uptown" is now available on iTunes and Apple Music alongside The Hamilton Mixtape. Gilman placed second to Sundance Head on season 11 of "The Voice."