Reba McEntire is speaking out after Brandon Blackstock's death. The country superstar — who was previously married to Brandon's father Narvel Blackstock from 1989 to 2015, and was identified as Brandon's stepmother in his obituary — posted a tribute for Brandon on Instagram on Tuesday, Aug. 12.

Kelly Clarkson's ex-husband, Brandon Blackstock, has passed away after a three-year cancer battle, his family said in a statement. The Silver Bow County Coroner, Dan Hollis, confirmed to TODAY.com that Blackstock's cause of death was melanoma and the manner of death was natural causes.