Kelly Clarkson’s top priority is her kids after her ex-husband Brandon Blackstock’s death. The “Since U Been Gone” singer, 43, has “been devastated” for her daughter, River, 11, and son Remington, 9, whom she shared with Blackstock, ever since their father was diagnosed with cancer over three years ago.

Kelly Clarkson's ex husband and father of her two children, Brandon Blackstock, has died, and the family's loss makes their last Instagram posts even sadder.

Clarkson, the "American Idol" star who shared two children with Blackstock, had just announced she was stepping away from concerts to support her family.