Blackstock was the father of four kids: Savannah and Seth, shared with his first wife Melissa Ashworth, and River and Remi, shared with Clarkson. He's also survived by a grandson, the first son of Savannah, born in 2022.

With ex-husband Brandon Blackstock ill, Clarkson postpones the balance of her August residency dates in Las Vegas so she can be 'fully present' for her kids.