What did the final months look like for Kelly Clarkson's ex-husband? A lot of questions have surrounded Kelly Clarkson over the past several months due to absences from her talk show and canceled concert dates.

Kelly Clarkson abruptly cancelled her Las Vegas shows, announcing that her ex-husband, Brandon Blackstock, was ill. Then, came the tragic news that Blackstock was dead at the age of 48. What was his cause of death?

Brandon Blackstock, the ex-husband of pop star Kelly Clarkson, has died from cancer, a family representative confirmed to CBS News. The talent manager was 48 years old.