This delightful Halas and Batchelor cartoon has a number of well-known rock stars singing an infectious song while the visuals enact the story of a frog and his friends who join together to attend the most spectacular ball of the year. Based on part of the book of verses and illustrations, “Butterfly Ball” by Alan Aldridge and William Plomer. Music by Roger Glover and animation by Harold Whitaker. Suitable for primary school level.