Image Credit: Getty Images Brandon Blackstock was married to his ex-wife Kelly Clarkson for seven years before their difficult split, which led to a legal battle over finances. However, they put aside their differences while co-parenting their children. And in Brandon's final days, Kelly made sure to remain supportive of her ex-husband and their family right before he died of cancer. Just hours before Brandon's death made headlines, Kelly announced she had to postpone the rest of her Las Vegas residency, citing her former husband's ailment in her explanation.