AP Photo/Henny Ray Abrams
The 74-foot-tall Rockefeller Center Christmas Tree is lit using 30,000 energy efficient LED lights in the 79th annual lighting ceremony, on Nov. 30, 2011, in New York.
The evening saw performances by Neil Diamond, Michael Buble, Cee Lo Green, Carole King, Katherine McPhee, Justin Bieber, Tony Bennett and more.
AFP PHOTO/Stan HONDA
The Rockefeller Center Christmas Tree is lit Nov. 30, 2011, in New York. Tens of thousands of people came out for the annual event.
AP Photo/Charles Sykes
Neil Diamond performs at the Rockefeller Center Christmas Tree Lighting ceremony in New York, on Nov. 30, 2011.
David Giesbrecht/NBC
Carole King performs at the Rockefeller Center Christmas Tree Lighting event in New York, on Nov. 30, 2011.
David Giesbrecht/NBC
Justin Bieber appeared at New York's annual Rockefeller Center Christmas tree lighting in a pre-taped performance on Nov. 30, 2011.
David Giesbrecht/NBC
Canadian crooner Michael Buble helped ring in the holiday season at the Rockefeller Christmas Tree Lighting ceremony in New York on Nov. 30, 2011.
AP Photo/Charles Sykes
Katherine McPhee of "American Idol" fame sang at the Rockefeller Christmas Tree Lighting on Nov. 30, 2011, in New York.
AP Photo/Charles Sykes
Cee Lo Green performs at the Rockefeller Christmas Tree Lighting ceremony on Nov. 30, 2011.
David Giesbrecht/NBC
Carole King performs at the Rockefeller Center Christmas Tree Lighting in New York, on Nov. 30, 2011.
Jason Kempin/Getty Images
Cee Lo Green performs at the 2011 Rockefeller Center Christmas Tree Lighting on Nov. 30, 2011, in New York.
David Giesbrecht/NBC
The Rockefeller Center Christmas Tree is lit Nov. 30, 2011, in New York. Tens of thousands of people came out for the annual event.
Gary Gershoff/Getty Images for NBC
Singer Michael Buble performs at the Rockefeller Center Christmas Tree Lighting Party at Rock Center Cafe on Nov. 30, 2011, in New York.
AP Photo/Henny Ray Abrams
The 74-foot-tall Rockefeller Center Christmas Tree is shown after it was lit using 30,000 energy efficient LED lights in the 79th annual lighting ceremony, Nov. 30, 2011, in New York.
AP Photo/Frank Franklin II
Pedestrians pass the Rockefeller Center Christmas Tree after it was lit, Nov. 30, 2011, in New York.
David Giesbrecht/NBC
The Rockefeller Center Christmas tree was lit on Nov. 30, 2011, in New York. The first official Rockefeller Center tree lighting ceremony took place in 1933.
David Giesbrecht/NBC
The Rockefeller Center Christmas tree was illuminated with five miles of lights on Nov. 30, 2011, in New York.
David Giesbrecht/NBC
The Rockefeller Center Christmas tree was lit on Nov. 30, 2011, in New York.
Photo by Jason Kempin/Getty Images
"The Voice" winner Javier Colon performs at the 2011 Rockefeller Center Christmas Tree Llighting ceremony on Nov. 30, 2011, in New York.
David Giesbrecht/NBC
The 74-foot-tall Rockefeller Center Christmas Tree is lit using 30,000 energy efficient LED lights in the 79th annual lighting ceremony, on Nov. 30, 2011, in New York.
Gary Gershoff/Getty Images for NBC
Actress Mariska Hargitay attends the Rockefeller Center Christmas Tree Lighting Party at Rock Center Cafe on Nov. 30, 2011, in New York.
Gary Gershoff/Getty Images for NBC
Actor Judah Friedlander of "30 Rock" attends the Rockefeller Center Christmas Tree Lighting Party at Rock Center Cafe on Nov. 30, 2011, in New York.
Jason Kempin/Getty Images
Katharine McPhee attends the 2011 Rockefeller Center Christmas Tree Lighting on Nov. 30, 2011, in New York.
Gary Gershoff/Getty Images for NBC
"Law & Order: SVU" actress Kelli Giddish attends the Rockefeller Center Christmas Tree Lighting Party at Rock Center Cafe on Nov. 30, 2011, in New York.
Gary Gershoff/Getty Images for NBC
Actor Grizz Chapman from "30 Rock" attends the Rockefeller Center Christmas Tree Lighting Party at Rock Center Cafe on Nov. 30, 2011, in New York.
Gary Gershoff/Getty Images for NBC
Donald Trump poses with Michael Jack, president and general manager of WNBC 4 New York, at the Rockefeller Center Christmas Tree Lighting Party on Nov. 30, 2011, in New York.
Gary Gershoff/Getty Images for NBC
Actors Sue Galloway and John Lutz of "30 Rock" attend the Rockefeller Center Christmas Tree Lighting Party at Rock Center Cafe on Nov. 30, 2011, in New York.