[1][2] The album featured the original score composed by John Murphy, while also includes songs from the Old 97's who also play the fictional alien band in the special.

[6] He wrote the lyrics to the opening song "I Don't Know What Christmas Is (But Christmastime Is Here)" and had approached Rhett Miller of the Old 97's to help him compose it, as Gunn has been a fan of the band, since the 1990s.

[16] Praising the musical tracks picked for the special, Joe George of Den of Geek said "the soundtrack is exactly what you'd expect if you asked your cooler older sibling to make a playlist for your Christmas party.

It's a pleasing mix of familiar tracks and deep cuts, effectively balancing downbeat numbers with upbeat songs to make for a good party.

[18] Reviewing the score, Shubham Kulkarni of Koimoi wrote "The music by John Murphy combined with the vibrant visuals appropriate for Christmas celebration is such a vibe that you will immediately surrender to it.