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.

Kelly Clarkson and her kids received an outpouring of love from her fans on social media after PEOPLE confirmed her ex Brandon Blackstock's death on Aug. 7. The talent manager was 48 and died after living with cancer for three years.

The family of Kelly Clarkson’s ex-husband, Brandon Blackstock, is beginning to speak out after his tragic death at age 48. Brandon died on Thursday, August 7, after a private, yearslong battle with cancer. His brother, race car driver Shelby Blackstock, 35, was one of the first in the family to publicly address his passing.