Watch Idina Menzel and Jennifer Nettles Slay "Let It Go" on 'CMA Country Christmas'

Idina Menzel Preta HP - H 2014
Miller Mobley

Idina Menzel Preta HP - H 2014

If you thought Frozen fever was thawing out anytime soon, it's quite the opposite. The drop in temperature around the country has only heated up the year-old movie — as evidenced by the latest cover of the Disney megahit "Let It Go."

Frozen belter Idina Menzel crashed CMA Country Christmas — which was recorded on Nov. 7 and aired Monday night on ABC — and sang "Let It Go" with the night's host, Sugarland's Jennifer Nettles.

Read more U.K. Box Office: 'Frozen' Breaks Back Into Top 10

While Nettles started out with a bit of "Do You Want to Build a Snowman?", Menzel knew what the crowd really wanted to hear. Not everyone can hit the epic high notes, but Nettles stood toe-to-toe with Menzel for the soaring song.

Broadway superstar Menzel had more than just Frozen songs under her belt. Earlier in the broadcast, she performed "White Christmas" in a fitted long-sleeved ivory gown, and then returned surrounded by a group of children to sing "Do You Hear What I Hear?"

And she wasn't the night's only special guest: Carrie Underwood was joined by Christian singer Michael W. Smith for a powerful duet, and her CMA Awards co-host, Brad Paisley, rocked out with Aerosmith's Steven Tyler. The night's other performers included LeAnn Rimes, Hunter Hayes, Little Big Town, Alan Jackson and many more.

Watch Menzel's performance below.

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