Songs from the Stage "Sunday Brunch" and the first single "One Night Only" on the special New Year's Eve edition of "The Graham Norton Show". "One Night Only" (originally from the musical "Dreamgirls") was released as the group's debut single on 6 October 2017. The song peaked on the A-list at BBC Radio 2. The second single from the album was revealed on 27 November 2017 to be a double A-side single of "I'm Every Woman" from "The Bodyguard" and "Have Yourself a Merry Little Christmas" from "Meet Me in St. Louis". "Will You Love Me Tomorrow" was released as the first promotional single
Merry Christmas II You to reviews from mainstream critics, "Merry Christmas II You" received an average score of 60, based on eight reviews, which indicates "mixed or average" reviews. About.com writer Bill Lamb praised the album, writing that it has a "relaxed, comfortable" which is "engaging". He wrote that the original compositions were "solid", placing emphasis on "Oh Santa!", "One Child" and "When Christmas Comes", but felt that "Christmas Time Is In the Air Again" was overshadowed by its heavy orchestration. He concluded by writing "Mariah Carey does know her way around Christmas albums." Joey Guerra of the "Houston Chronicle" echoed Lamb's sentiments, adding