The cause of death of Brandon Blackstock, Kelly Clarkson's ex-husband and former manager, has been revealed."Brandon Blackstock passed away peacefully at his home in Butte, Montana on August 7th under hospice care surrounded by his family," Silver Bow County Coroner Dan Hollis told People. Blackstock's cause of death was melanoma, a form of skin cancer.The manner of death was natural causes. He was 48.On Aug. 7, a representative for the family confirmed Blackstock's death in a statement to Fox News Digital.BRANDON BLACKSTOCK, KELLY CLARKSON'S EX-HUSBAND, DEAD AT 48"It is with great sadness that we share the news that Brandon Blackstock has passed away. 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."CLICK HERE TO SIGN UP FOR THE ENTERTAINMENT NEWSLETTEROn Wednesday, Clarkson announced her plans to postpone additional shows from her Las Vegas residency due to a family emergency.LIKE WHAT YOURE READING? CLICK HERE FOR MORE ENTERTAINMENT NEWS"Unfortunately, I need to postpone the remainder of the August Studio Session dates in Las Vegas," the "Since U Been Gone" singer captioned an Instagram post on Wednesday. "While I normally keep my personal life private, this past year, my childrens father [ex-husband Brandon Blackstock] has been ill and at this moment, I need to be fully present for them."HOLLYWOOD STARS WHO DIED IN 2025"I am sincerely sorry to everyone who bought tickets to the shows and I so appreciate your grace, kindness and understanding," she concluded.The singer, who was married to Blackstock for seven years before their divorce in 2022, reportedly "remained protective" of her ex as he battled cancer for three years."Kelly remained protective of him when she found out he was sick," a source told People magazine. "Shes always kept things classy, even when it became clear earlier this year that Brandon was not doing well. Shes been devastated for the kids."While their tumultuous divorce played out in the public eye, Clarksons focus has always been on maintaining stability for their two children -- River Rose and Remington Alexander.LIKE WHAT YOURE READING? CLICK HERE FOR MORE ENTERTAINMENT NEWS"The divorce was incredibly difficult for her messy, painful and something she felt terrible about," the source told the outlet. "But she never wanted her kids to be caught in the crossfire. She never spoke poorly about Brandon to them."Clarkson and Blackstock were married in 2013, but they met years earlier as Blackstock's father, Narvel Blackstock, owns the music management company that represented Clarkson beginning in 2007. The pair welcomed their first child, daughter River Rose, in 2014 and their son, Remington Alexander, was born in 2016.In 2020, Clarkson filed for divorce from Blackstock, who also served as her manager.Clarkson and Blackstock's divorce was settled in 2022, with Clarkson receiving primary physical custody of their two children while still paying their father $45,000 a month in child support.While McEntire has yet to speak about Blackstock's death, her son Shelby shared a tribute to his late half-brother on Friday.CLICK HERE TO SIGN UP FOR THE ENTERTAINMENT NEWSLETTER"Words cannot begin to capture the tremendous loss our family has endured. Yesterday, we lost a brother, a father, a grandfather, and a son," Shelby wrote alongside a photo of Blackstock beaming while sitting on a brown horse in a paddock."Brandon Blackstock was an irreplaceable part of our family funny, bright, and full of life and he will be deeply missed," Shelby added. "He taught me so much, leaving behind countless cherished memories that I will hold onto forever.""For every treasured moment we shared, there are so many more well never get to make together, but I know youll still be there," he added. "Every hunt, every flight, and in the everyday moments of life, Ill feel your presence.""And although it may annoy you, youll have to watchme do it all just a little better, a little smoother, and lets be honest looking far more handsome than you ever could in the process."We will always miss you, Brandon, and we will never stop loving, remembering and celebrating you."