Kelly Clarkson could barely keep it together singing a song she'd originally written for ex-husband Brandon Blackstock .
During a performance in Las Vegas last month, the singer tweaked the lyrics to "Piece by Piece" after struggling to "compartmentalize."
Brandon Blackstock died on Thursday (Aug. 7) after a 3-year cancer battle.
The 48-year-old was the father of Clarkson's two kids, River and Remington, as well as two children from a previous marriage.
The couple divorced in 2022.
Video taken on July 26 finds Clarkson approaching the 2015 hit with more than a little trepidation. She wipes away tears and tells the crowd her emotions are embarrassing before explain why she's changed the lyrics to "Piece by Piece" for a third time.
Kelly Clarkson, "Piece by Piece" Lyrics:
Greg Ku