Kelly Clarkson has put her family first amid ex-husband Brandon Blackstock’s private cancer battle, with a source shedding light into how she’s been coping. “Kelly’s work schedule has been difficult over the last few months as she needed to take care of her kids,

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

Brandon Blackstock, whose marriage to and contentious split from Kelly Clarkson put him in the celebrity spotlight, has died of cancer at age 48.