Jemal Countess/Getty Images
Spectators enjoy the celebration during 81st annual Rockefeller Center Christmas Tree Lighting Ceremony at Rockefeller Center in New York City, Dec. 4, 2013.
Giovanni Rufino/NBC
Mariah Carey rehearses for "Christmas in Rockefeller Center."
New York
Kathy Willens/AP
The Rockefeller Center Christmas tree shines in New York, Dec. 4, 2013. Some 45,000 energy efficient LED lights adorn the 76-foot tree.
Mary J. Blige
Stephen Lovekin/Getty Images
Mary J. Blige performs during 81st annual Rockefeller Center Christmas Tree Lighting Ceremony at Rockefeller Center, Dec. 4, 2013.
Kelly Clarkson
David Giesbrecht/NBC
Kelly Clarkson rehearses for "Christmas in Rockefeller Center."
The Goo Goo Dolls
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The Goo Goo Dolls perform before the Rockefeller Center Christmas Tree is lit, Dec. 4, 2013.
The Rockettes
Stan Honda/AFP/Getty Images
The Radio City Music Hall Rockettes perform before the Rockefeller Center Christmas Tree is lit, Dec. 4, 2013.
John Rzeznik
Stephen Lovekin/Getty Images
John Rzeznik and the Goo Goo Dolls perform during the 81st annual Rockefeller Center Christmas Tree Lighting Ceremony, Dec. 4, 2013.
New York
Jemal Countess/Getty Images
General atmosphere during the 81st Annual Rockefeller Center Christmas Tree Lighting Ceremony at Rockefeller Center, Dec. 4, 2013.
Ashanti
Giovanni Rufino/NBC
Ashanti rehearses for "Christmas in Rockefeller Center."
New York
Jemal Countess/Getty Images
General atmosphere during the 81st annual Rockefeller Center Christmas Tree Lighting Ceremony at Rockefeller Center, Dec. 4, 2013.
Gabriela Isler
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Miss. Universe Gabriela Isler arrives during the 81st annual Rockefeller Center Christmas Tree Lighting Ceremony at Rockefeller Center, Dec. 4, 2013.
Jewel
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Jewel performs before the Rockefeller Center Christmas Tree is lit, Dec. 4, 2013.
New York
Jemal Countess/Getty Images
Spectators enjoy the celebration during the 81st annual Rockefeller Center Christmas Tree Lighting Ceremony at Rockefeller Center, Dec. 4, 2013.
Leona Lewis
Stephen Lovekin/Getty Images
Leona Lewis performs during the 81st annual Rockefeller Center Christmas Tree Lighting Ceremony at Rockefeller Center, Dec. 4, 2013.
Rockettes
Stephen Lovekin/Getty Images
Members of the musical "Rockettes" perform during the 81st annual Rockefeller Center Christmas Tree Lighting Ceremony, Dec. 4, 2013.
New York
Kathy Willens/AP
The Swarovski star shines atop the Rockefeller Center Christmas tree after it was lit during a ceremony, Dec. 4, 2013.
Lauren Alaina
Stephen Lovekin/Getty Images
Lauren Alaina performs during the 81st annual Rockefeller Center Christmas Tree Lighting Ceremony at Rockefeller Center, Dec. 4, 2013.
New York
Jemal Countess/Getty Images
Spectators gather to watch the 81st Annual Rockefeller Center Christmas Tree Lighting Ceremony, Dec. 4, 2013.
Jewel
Stephen Lovekin/Getty Images
Jewel performs during the 81st annual Rockefeller Center Christmas Tree Lighting Ceremony, Dec. 4, 2013.
New York
Jemal Countess/Getty Images
General atmosphere during the 81st annual Rockefeller Center Christmas Tree Lighting Ceremony, Dec. 4, 2013.
NBC's Today
Stephen Lovekin/Getty Images
Television news hosts Natalie Morales, Savannah Guthrie, Al Roker and Matt Lauer arrive during the 81st annual Rockefeller Center Christmas Tree Lighting Ceremony, Dec. 4, 2013.
New York
Jemal Countess/Getty Images
Spectators enjoy the celebration during the 81st annual Rockefeller Center Christmas Tree Lighting Ceremony at Rockefeller Center, Dec. 4, 2013.
Jewel
Kathy Willens/AP
Jewel performs before the Rockefeller Center Christmas tree lighting, Dec. 4, 2013.
Mary J. Blige
Jemal Countess/Getty Images
Mary J. Blige performs during the 81st annual Rockefeller Center Christmas Tree Lighting Ceremony at Rockefeller Center, Dec. 4, 2013.
New York
Jemal Countess/Getty Images
Spectators enjoy the celebration during the 81st annual Rockefeller Center Christmas Tree Lighting Ceremony, Dec. 4, 2013.
John Rzeznik
Kathy Willens/AP
John Rzeznik, lead singer of the Goo Goo Dolls, sings before the lighting of the Rockefeller Center Christmas tree, Dec. 4, 2013.
New York
Kathy Willens/AP
A young woman stands at a podium that was used to light the Rockefeller Center Christmas tree as others take photographs of the tree, Dec. 4, 2013.
The Rockettes
Kathy Willens/AP
The Rockettes perform before the lighting of the Rockefeller Center Christmas tree, Dec. 4, 2013.
New York
Kathy Willens/AP
The Rockefeller Center Christmas tree is shown surrounded by angels in a view from the Channel Gardens, Dec. 4, 2013, in New York. Some 45,000 energy efficient LED lights adorn the 76-foot tree.
