Dolly Parton offers grief advice to Kelly Clarkson and Reba McEntire following Brandon Blackstock's death, encouraging them to honor his memory.

Clarkson has yet to speak out about Blackstock’s death — but she’s said to be “devastated” for her kids River, 11, and Remington, 9, over the tragedy. “When she found out that he was sick, she remained protective of him for their sake,” an insider told People on Friday.