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

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