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
When Christmas Comes peaked at number two on the Digital chart. In the United States, the duet debuted at number twenty-five on the Adult R&B Songs chart, and climbed to number seventeen the following week. It dropped one position to number eighteen in its third week, but resurged to a peak of number fifteen the week after on January 7, 2012. "When Christmas Comes" debuted at number seventy on the Hot R&B/Hip-Hop Songs chart, becoming the "Hot Shot Debut" for the week dated December 17, 2011, and the first song from "Merry Christmas II You" to enter the chart. It is Carey's fifty-third