Tia Mowry and Tori Spelling star in this new ABC Family original holiday musical. Holly (Mowry) blessed with an amazing singing voice, is all set to audition for the newly vacated spot in The Snow Belles, a legendary local Christmas group which was founded by her late mother. Shocked and upset when the slot goes to the barely talented best friend of the group's leader Marci (Spelling), Holly sets out to create her own musical group, The Mistle-Tones and challenges her rivals to a Christmas Eve sing-off!