Al Roker and Jane Krakowski host NBC's 11th annual Christmas special from Rockefeller Center. Featuring musical performances by Miley Cyrus, Beyoncé, Tony Bennett, Neil Boyd, the Jonas Brothers, Harry Connick Jr., David Cook and Rosie O'Donnell. And special guest appearances by Britney Spears, Stephen Colbert, The Radio City Rockettes, Miss Piggy and Kermit the Frog.