Firefighters Sing Frozen's 'Let It Go' To Calm Mass. Girl During Rescue Last Wednesday 4-year-old Kaelyn Kerr was stuck in an elevator with her mom and baby brother. Massachusetts firefighters quickly came to the rescue, but when they placed a ladder in the elevator little Kaelyn began to panic. To calm her, firefighter Scott Myette took out his phone and began playing 'Let It Go' from the Disney film Frozen.