Amy Grant and Vince Gill will launch a 15-date Christmas tour on Dec. 4 in Manchester, N.H. The tour will conclude with shows at the Ryman Auditorium in Nashville on Dec. 22 and 23. Gill's daughter, Jenny, will serve as a harmony vocalist in the 12-piece band, which will include a horn section. "Some of our earlier Christmas tours were with a symphony orchestra," Gill said. "This time, though, we wanted to create more of an intimate, living room feel." In addition, Grant will release a new Christmas album, The Holiday Collection, on Tuesday (Sept. 30), featuring songs from her previous holiday albums, as well as four new songs. She and Gill co-wrote one of the new songs, "Baby It's Christmas."