Drawing from a scene in the children's book The Butterfly Ball and the Grasshopper's Feast, this enthusiastic event at the Royal Albert Hall in 1975 served as a benefit for Bud Flanagan's Leukemia Fund and Action Research for the Crippled Child. Narrated by Vincent Price, the unique production features performances by well-known artists such as Deep Purple musicians Roger Glover and Ian Gillan, singer Helen Chapelle and singer-model Twiggy.