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Brandon Blackstock’s Cause of Death Revealed: Family Reflects on His Final Years

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Brandon Blackstock, Kelly Clarkson’s ex-husband, passed away at 48 from melanoma after battling cancer for over three years. Family tributes and reflections on his life and legacy.

Kelly Clarkson and Brandon Blackstock arrive at the 60th Annual Grammy Awards in New York City on January 28, 2018 | Photo: Getty Images
Kelly Clarkson and Brandon Blackstock arrive at the 60th Annual Grammy Awards in New York City on January 28, 2018 | Photo: Getty Images
Brandon Blackstock dressed in a suit with a white boutonnière, as posted on August 8, 2025 | Source: Instagram/shelbyblackstock
Brandon Blackstock dressed in a suit with a white boutonnière, as posted on August 8, 2025 | Source: Instagram/shelbyblackstock
Brandon Blackstock attends the 25th Annual Critics' Choice Awards in Santa Monica on January 12, 2020 | Source: Getty Images
Brandon Blackstock attends the 25th Annual Critics’ Choice Awards in Santa Monica on January 12, 2020 | Source: Getty Images

Official Cause of Death for Kelly Clarkson’s Ex-Husband Brandon Blackstock Revealed – Details
The official cause of death for Brandon Blackstock, the former talent manager and ex-husband of Kelly Clarkson, has been revealed. Brandon, aged 48, passed away on August 7, 2025, from melanoma, a type of skin cancer, after battling the illness privately for more than three years.

Kelly Clarkson with her children, River Rose and Remington Blackstock, at the Hollywood Walk of Fame Star Ceremony in Los Angeles on September 19, 2022 | Source: Getty Images
Kelly Clarkson with her children, River Rose and Remington Blackstock, at the Hollywood Walk of Fame Star Ceremony in Los Angeles on September 19, 2022 | Source: Getty Images
Kelly Clarkson performs during the Citi Concert Series on the "Today" show in New York City on May 6, 2025 | Source: Getty Images
Kelly Clarkson performs during the Citi Concert Series on the “Today” show in New York City on May 6, 2025 | Source: Getty Images
Brandon Blackstock with his son Seth at an outdoor event, as posted on August 8, 2025 | Source: Instagram/sethblackstock
Brandon Blackstock with his son Seth at an outdoor event, as posted on August 8, 2025 | Source: Instagram/sethblackstock

The Silver Bow County Coroner confirmed his death from natural causes, with Brandon passing away peacefully at his home in Butte, Montana, while under hospice care. In a statement, Brandon’s family shared their sorrow: “Brandon bravely battled cancer for more than three years. He passed away peacefully and was surrounded by family. We thank you for your thoughts and prayers and ask everyone to respect the family’s privacy during this very difficult time.”

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Brandon Blackstock pictured with two children and a dog during an outdoor family moment, as posted on August 8, 2025 | Source: Instagram/sethblackstock
Brandon Blackstock pictured with two children and a dog during an outdoor family moment, as posted on August 8, 2025 | Source: Instagram/sethblackstock
Brandon Blackstock and his son Seth smiling while standing together at a rodeo event, as posted on August 8, 2025 | Source: Instagram/sethblackstock
Brandon Blackstock and his son Seth smiling while standing together at a rodeo event, as posted on August 8, 2025 | Source: Instagram/sethblackstock
Brandon Blackstock and Seth on horseback in a scenic rural area, as posted on August 8, 2025 | Source: Instagram/sethblackstock
Brandon Blackstock and Seth on horseback in a scenic rural area, as posted on August 8, 2025 | Source: Instagram/sethblackstock

Brandon’s Final Days and Family’s Tribute
After his diagnosis, Brandon relocated to Montana, where he lived on a ranch and spent time with his family. As his health deteriorated, he kept a low profile, engaging in his passion for rodeo and spending time with loved ones. His son, Seth Blackstock, paid a heartfelt tribute to his father, sharing an emotional Instagram post on August 8: “I lost my hero yesterday, words can’t describe how proud of you I am on raising me and your 3 other kids. You were a father, a son, a brother, and most importantly my best friend.”

 

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Kelly Clarkso is pictured during an episode of "The Kelly Clarkson Show" on June 5, 2025. | Source: Getty Images
Kelly Clarkso is pictured during an episode of “The Kelly Clarkson Show” on June 5, 2025. | Source: Getty Images
Kelly Clarkson and Brandon Blackstock attend the 2018 CMT Music Awards at Bridgestone Arena on June 6, 2018, in Nashville, Tennessee.  | Source: Getty Images
Kelly Clarkson and Brandon Blackstock attend the 2018 CMT Music Awards at Bridgestone Arena on June 6, 2018, in Nashville, Tennessee. | Source: Getty Images

Seth fondly recalled their time together, highlighting Brandon’s skills in hunting and his vibrant personality. He ended his tribute with a loving message: “I will think of you every day. I can’t wait to fish with you again one day.” Seth’s post also included personal photos from their shared moments over the years.

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Brandon Blackstock and Kelly Clarkson attend the 60th Annual GRAMMY Awards at Madison Square Garden on January 28, 2018, in New York City. | Source: Getty Images
Brandon Blackstock and Kelly Clarkson attend the 60th Annual GRAMMY Awards at Madison Square Garden on January 28, 2018, in New York City. | Source: Getty Images
Narvel Blackstock, Reba McEntire, Kelly Clarkson, and Brandon Blackstock attend Muhammad Ali's Celebrity Fight Night XXI at the JW Marriott Phoenix Desert Ridge Resort & Spa on March 28, 2015, in Phoenix, Arizona. | Source: Getty Images
Narvel Blackstock, Reba McEntire, Kelly Clarkson, and Brandon Blackstock attend Muhammad Ali’s Celebrity Fight Night XXI at the JW Marriott Phoenix Desert Ridge Resort & Spa on March 28, 2015, in Phoenix, Arizona. | Source: Getty Images
Shelby Blackstock poses with family in a photo shared on March 6, 2025. | Source: Instagram/shelbyblackstock
Shelby Blackstock poses with family in a photo shared on March 6, 2025. | Source: Instagram/shelbyblackstock

Kelly Clarkson’s Response
Brandon’s death has not only deeply impacted his family but also Kelly Clarkson, who shares two children with him. Sources have revealed that Kelly remained supportive and protective of Brandon as he faced health struggles, focusing on her children’s well-being while respecting their family’s privacy. “When she found out that he was sick, she remained protective of him for their sake,” a source said.

Shelby Blackstock poses with family in a photo shared on March 6, 2025. | Source: Instagram/shelbyblackstock
Shelby Blackstock poses with family in a photo shared on March 6, 2025. | Source: Instagram/shelbyblackstock

As Brandon’s health worsened, Kelly made the decision to take time off from her talk show to be present for her children. She postponed dates for her “Studio Sessions” residency in Las Vegas, a decision made to stay “fully present” for her family during this difficult time.

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Family Support and Reflections
Brandon’s ex-stepmother, country star Reba McEntire, remained a constant source of support for the family throughout Brandon’s illness. Despite her divorce from Brandon’s father, Reba spent more time with the Blackstock family than in recent years, even arranging family gatherings like the 2025 Houston Livestock Show and Rodeo. Reba’s presence and efforts to keep the family united were appreciated during this trying time.

Brandon’s son, Shelby Blackstock, also shared a tribute to his father on Instagram, saying, “Brandon Blackstock was an irreplaceable part of our family—funny, bright, and full of life—and he will be deeply missed.” Shelby fondly reflected on their shared memories, expressing that Brandon’s presence would continue to be felt every day, especially during favorite activities like hunting and flying. He promised that Brandon would always be loved, remembered, and celebrated.

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A Final Tribute
Brandon’s passing casts a shadow over Kelly’s ongoing career, but the focus remains on honoring his memory and supporting their children. While Kelly is set to return for the seventh season of The Kelly Clarkson Show, fans and loved ones alike continue to reflect on Brandon’s impact and the legacy he leaves behind.

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