This morning will be full of holiday celebrations when the hosts present “Kelly and Ryan’s Christmas Eve.” They’ll be joined by “Orville” actor SETH MacFARLANE and country superstar MARTINA McBRIDE, who also performs for the “Live” audience. Plus, the highly acclaimed Young People’s Chorus of New York City will fill the studio with Christmas music throughout the hour, and top celebrities will share holiday memories and best wishes, including MARIAH CAREY, CATHERINE ZETA-JONES, MICHAEL BUBLÉ and KERRY WASHINGTON. The show wraps up with a visit from the big guy himself, Santa Claus.