NEW YORK – November 19, 2013 – NBC will celebrate the lighting of the world’s most famous Christmas tree with a live broadcast from Rockefeller Center in New York City on Wednesday, Dec. 4 (8-9 p.m. ET). The star-studded holiday special is hosted by “Today” anchors Matt Lauer, Savannah Guthrie, Al Roker and Natalie Morales, and will feature performances from Mary J. Blige, Toni Braxton, Mariah Carey, Kelly Clarkson, Kenny “Babyface” Edmonds, Goo Goo Dolls, Ariana Grande and Jewel.The 81st annual holiday extravaganza will feature a 76-foot Norway Spruce that is 47 feet in diameter and weighs ap