Brandon Blackstock's Son Seth Shares Heartbreaking Tribute to His "Hero" After Dad's Death

Seth Blackstock is honoring the memory of his father. 

The 18-year-old son of Brandon Blackstock shared a touching tribute two days after the music manager died at age 48 following a battle with cancer.

"I lost my hero yesterday," Seth—who Brandon shared with his first wife Melissa Ashworth—wrote in his Aug. 9 tribute post, "Words can’t describe how proud of you I am on raising me and your 3 other kids."

Along with posting sweet photos of the two spending time together over the years, Seth continued by saying how important his father was to him and his siblings, which includes sister Savannah Blackstock, 23, and Brandon's children with ex Kelly Clarkson: River Rose Blackstock, 11, and Remington “Remy” Alexander Blackstock, 9. 

As Seth put it, "You were a father, a son, a brother, and most importantly my best friend."

Following the loss, the teen expressed his belief that his father is now at peace.

"You’ll have to watch me grow up from a Birds Eye view now buts that’s ok with me," he wrote. "There’s no one else on this earth that I would want to be my dad because no one can be half the man you were to me. I’ll see you everyday when the sun rises and falls."