7This special book gives every Frozen fan the chance to bring out their inner-Elsa! Press 5 interactive buttons to sing along with an instrumental version of "Let It Go." Then, press the 6th button to hear the song sung by Elsa herself! Lyrics to the song are printed right in the book. Little ones will love to let it go and sing it out! Music and singing help build language and literacy skills, and encourage self-expression.