Blackstock died at his home in Butte, Montana, on Aug. 7. He was 48. The death certificate said that his cause of death was malignant melanoma, or a type of skin cancer, with his manner of death listed as natural causes, People magazine reported.

Brandon Blackstock, the talent manager and former husband of Kelly Clarkson, died of melanoma, a form of skin cancer, on Aug. 7. The Silver Bow County Coroner Dan Hollis tells PEOPLE Blackstock "passed away peacefully at his home in Butte,

Brandon's illness made headlines on August 6, 2025, when Kelly announced the postponement of her Vegas residency. Just one day later, he died. Find out what happened to him.