Talent manager Brandon Blackstock, the ex-husband of Kelly Clarkson and the former stepson of Reba McEntire, has died at age 48. The news of Blackstock’s passing comes just one day after Clarkson cancelled the remainder of her Las Vegas residency dates this month, noting that her ex-husband was ill and she needed to spend time with their children, River, 11, and Remington, 9.

A rep for the family told PEOPLE in a statement: “It is with great sadness that we share the news that Brandon Blackstock has passed away. 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 had announced on social media t

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