Watch: Reba McEntire's Son Shares Tribute to Late Brother Brandon BlackstockReba McEntire is remembering her late stepson's spirit. Four months after Brandon Blackstock died following a three-year battle with cancer, the "I'm A Survivor" singer dedicated a sweet tribute to him on what would've been his 49th birthday. "Happy birthday Brandon!" Reba, 70, wrote on her Dec. 16 Instagram post, which included a throwback photo of her and the music manager spending time together. "We love and miss you a bunch." Indeed, The Voice coach wasn't the only one who had a strong bond with Brandon.