If you thought you couldn't love "Let It Go," the Oscar-nominated hit song from the film "Frozen," any more than you already do -- think again.
Performed in the film by Idina Menzel, "Let It Go" -- which has taken the Internet by storm in recent weeks -- was a "game changer" to the film's production, "Frozen" co-director and writer, Jennifer Lee, told The Huffington Post last week.
"The song was so special that I literally had to rewrite a lot of the movie to support that song," she said.
Also on HuffPost:
More:Let It Go 25 Languages. Let It Go Mashup Languages Let It Go Frozen Let It Go Frozen Let It Go Mashup
HuffPost Entertainment is your one-stop shop for celebrity news, hilarious late-night bits, industry and awards coverage and more — sent right to your inbox six days a week. Learn more