The James Horner/Mariah Carey/Will Jennings co-write "Where Are You Christmas?" is beautifully interpreted by Ali (Slaight) and Theo (Tams). Their voices engage in harmony, Theo's piano playing and lush orchestral arrangement capturing the spirit of this bittersweet holiday song, and Thomas "Tawgs" Salter's production makes it sparkle . The altered lyric at the end adds a perfect note to a quite perfect song. "Have Yourself A Merry Little Christmas", introduced by Judy Garland in the 1944 MGM musical Meet Me in St. Louis, is given a festive up-date that avoids sounding saccharine and benefits from the symmetry of two voices that glow together.