Kelly Clarkson and Reba McEntire are not related by blood, but they are connected through their past marriages. Reba was married to Narvel Blackstock, the father of Kelly's ex-husband Brandon Blackstock, from 1989 to 2015. Before Kelly's divorce from Brandon, Reba was a big supporter of their marriage and gushed over Kelly during an episode of The Kelly Clarkson Show in 2019. Reba also spoke highly of Kelly in a 2018 interview with Closer. Despite Kelly's split from Brandon in 2020, Reba remained close to her former daughter-in-law. An insider said that Kelly and Reba have a bond that cannot be broken.
In April 2023, Reba appeared on The Voice as a mentor and expressed how proud she is of Kelly's growth as an artist and as a person.