Hollywood Holidays
'Tis the Season! Celebs Spread Holiday Cheer
Blake Shelton! Mariah Carey! Taylor Swift! See who's got enough spirit to be Santa's helper
Credit: Jackson Lee/Splash News Online
Updated: Friday Dec 21, 2012 | 04:00 PM EST By: Alison Schwartz
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MARIAH CAREY
She's Santa's little helper! The singer turns the Big Apple into the North Pole on Nov. 27 to help celebrate the next day's lighting of the Rockefeller Center Christmas tree. "Let the festivities begin!" she Tweeted.

