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 that the album ought to boost Carey's career. He was complimentary of its overall feel, writing that manages to capture the "same magic" as her previous Christmas album, "Merry Christmas", and that the original songs fit "snugly" with the Christmas classics. He finished his review with "There's enough sweet spirit here to keep the holidays merry, musical and bright." Stephen Thomas Erlewine of AllMusic noted that the four new original compositions gave it "a lively modern feel," and highlighted "Oh Santa!" and "When Christmas Comes" as examples. He continued to write that although some covers, such as "Auld Lang Syne"