Grace VanderWaal Warms Up the Stage with Frosty the Snowman

Also available on the NBC app

The judges are anything but frosty after reigning champion Grace VanderWaal performs the holiday classic.

Available until 12/19/17
Tags: Americas got talent, agt, agt holiday spectacular, americas got talent holiday spectacular, americas got talent christmas special, americas got talent holiday special, Simon Cowell, mel b, Heidi klum, nick cannon, Howie Mandel, grace vanderwaal, .
S1 E12 minHighlightLive Events and SpecialsPrimetime