Billboard Music Awards: Kelly Clarkson Performs "Invincible" (Video)

The pop star sang the second single off of her latest album "Piece by Piece"

Mariah Carey wasn't the only Billboard Music Awards performer who demonstrated her impressive vocal skills on Sunday night.

Kelly Clarkson had the crowd cheering as she hit the high notes near the end of her earnest performance of her Sia-written ballad "Invincible." Watch the full performance here:

The track is the second single off her latest album Piece by Piece.

Clarkson stood solo on an illuminated platform, which lit up as she sang the chorus, as she belted out the song at Sunday night's Billboard Music Awards.

The former American Idol champ was accompanied by and orchestra and several back-up singers.

The Billboard Music Awards, co-hosted by Ludacris and Chrissy Teigen, aired live from the MGM Grand Garden Arena in Las Vegas on ABC at 8 p.m. ET.

More to come...