Kelly Clarkson is fully focused on her children’s needs following the death of their father, Brandon Blackstock, on Thursday (Aug. 7).

The 48-year-old had privately battled cancer for over three years, with the pop-country powerhouse shielding their kids from the heartbreaking details.

Clarkson is now in full mom mode, ensuring that River, 11, and Remington, 9, feel protected and loved during this incredibly tough time.

A Private Battle and Heartbreaking Loss

Blackstock passed away surrounded by family, and Clarkson has been "devastated" for her kids as they process their father’s passing .

"When she found out that he was sick, she remained protective of him for their sake. Clarkson has always tried to keep things classy," an insider told People .

They continued, "It became

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