Written by Clarkson, Danja, Jason Halbert, Hayley Warner, and Jesse Thomas, it was released a promotional single by Atlantic Records on October 15, 2021.

"Glow" is a soulful country Christmas ballad written by Clarkson, Danja, Jason Halbert, Hayley Warner, and Jesse Thomas.

[2] Stapleton, who had previously co-wrote a song for Clarkson on the soundtrack to the feature film Trolls World Tour, was invited by Clarkson to record the song with her while recording the album's other tracks with Jesse Shatkin.

[3] In his review of the album, Mike Dewald of Riff Magazine wrote that Stapleton's vocal performance perfectly complements Clarkson's.

[1] Michael Major of BroadwayWorld highlighted the track as a "cheerful standout" on the album.