Kelly Clarkson's ex-husband, Brandon Blackstock, dies at 48

Kelly Clarkson's former husband and the father of her two children died after a three-year battle with cancer, his representative said Thursday.

Kelly Clarkson's former husband and the father of her two children died after a three-year battle with cancer, his representative said Thursday.

He was 48.

“It is with great sadness that we share the news that Brandon Blackstock has passed away," a spokesperson for Blackstock said in a statement.

"Brandon bravely battled cancer for more than three years. He passed away peacefully and was surrounded by family. We thank you for your thoughts and prayers and ask everyone to respect the family’s privacy during this very difficult time.”

Clarkson, the “American Idol” star and three-time Grammy winner, had announced Wednesday that she was postponing the rest of her “Studio Session” concerts in Las Vegas this month to support her family.