Article continues below advertisementBrandon Blackstock stayed completely out of the spotlight in the five years leading up to his sad death at age 48.The late talent manager's last public appearance occurred at the Critics' Choice Awards in January 2020, which he attended alongside his then-wife, Kelly Clarkson - just six months before she filed for divorce that June.Article continues below advertisementBrandon Blackstock Last Seen in Public at 2020 Critics' Choice AwardsSource: MEGABrandon Blackstock last emerged publicly at the 2020 Critics' Choice Awards.