Kelly Clarkson's ex-husband, Brandon Blackstock, has passed away after a three-year cancer battle, his family said in a statement. The Silver Bow County Coroner, Dan Hollis, confirmed to TODAY.com that Blackstock's cause of death was melanoma and the manner of death was natural causes.

Brandon Blackstock's official cause of death has come to light, days after the talent agent and ex-husband of Kelly Clarkson died of natural causes at age 48.

Kelly Clarkson was struggling to get through her residency show in the days leading up to her ex-husband Brandon Blackstock’s shocking death. The singer, 43, broke down crying during her July 26 Las Vegas Studio Session residency concert while introducing fans to an updated version of her song “Piece by Piece.”