After 4-year-old Kaelyn Kerr got stuck in an elevator in Reading, Massachusetts with her mother and baby brother on Wednesday, the only way out was up a ladder and over a wall. Needless to say, little Kaelyn panicked.

My Fox Boston reports that the firefighters learned that little Kaelyn liked the Disney movie “Frozen,” and so Scott Myette began playing the movie’s theme song, “Let It Go” on his cell-phone. Myette and fellow firefighter John Keough sang along with the hit song to try calming Kaelyn down.

“It worked,” Keough told My Fox Boston. “We got her to a point where she was comfortable with us and up the ladder we went, right up and over, no problem.”

After their elevator got “frozen,” who knew that a song could give a girl enough courage to get her through a scary situation? Good thinking, firefighters.

Britain Recognizes Sharia Law And Enshrines Gender Discrimination For The First Time