Brandon Blackstock -- a talent manager who was Kelly Clarkson 's ex-husband and Reba McEntire 's stepson -- has died. He was 48 years old.

According to a statement from his family shared with People , Blackstock died after a cancer battle.

"Brandon bravely battled cancer for more than three years," the statement reads. "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."

The news comes just hours after. Clarkson postponed all August dates of her Studio Sessions Las Vegas residency, explaining to fans that Blackstock has been ill and she has been focusing on the two children they share, River Rose and Remy Alexander.

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