GMA coordinated the epic sing-along, with Idina Menzel and the New York City Children's Chorus, as well as fans at the event and viewers around the country.
Lexi Walker, from one of our favorite "Let It Go" videos, was among the girls to belt out the tune.
Idina spoke with GMA about the popularity of the song, saying, "Yeah, it's empowering for me. I can totally understand how girls are gravitating to this song. It's about owning your own power. It's about owning who you are and celebrating what makes you a fierce, young girl, and not caring what people think and finally relinquishing and being free."
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