Talent manager Brandon Blackstock, the ex-husband of Kelly Clarkson, has passed away. He was 48 years old.

"It is with great sadness that we share the news that Brandon Blackstock has passed away," a representative told PEOPLE magazine. "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."

Blackstock's death comes hours after Clarkson revealed she was postponing her Las Vegas residency because of Blackstock's health.

"Unfortunately, I need to postpone the remainder of the August Studio Session dates in Las Vegas," she wrote on Instagram. "While I normally keep my personal life private, this past year, m

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