Seth Blackstock is Brandon Blackstock’s son with his first wife Melissa Ashworth. He currently lives with his dad and stepmother Kelly Clarkson.
Seth is on great terms with his famed stepmom and adores his younger half-siblings. For instance, Kelly shared a cute photo of the boy reading to his little sister River.
Moreover, Seth seems to be rather an artistic personality. In 2015, he appeared at one of Kelly’s shows by dancing and singing with her backup singers while the country music artist performed Uptown Funk.
In 2019, Seth, his elder sister and younger half-siblings accompanied their parents to the premiere of Ugly Dolls movie.
A cute fact: knowing that her stepson adores Ariana Grande, Clarkson used her celebrity status to organize his meeting with the pop star in 2015.