Overview: It’s “Live’s” annual holiday episode, “Live with Kelly and Ryan @ Home for the Holidays.” The hosts are joined by the singing superstar most connected to Christmas, MARIAH CAREY, to talk about her Apple TV+ program, “Mariah Carey’s Magical Christmas Special.” Also, singer ALANIS MORISSETTE performs a beautiful rendition of the John Lennon/Yoko Ono classic “Happy X-Mas (War Is Over).”