Singer and musician; briefly a child star -- via legacy.com. AKA Isadore Borsuk. He was immensely popular from 1934 through 1939, when his voice changed. His impact was such that he starred in eight films between 1936 and 1939, utting him on par with other child stars of era such as Jackie Cooper and Freddie Bartholemew. Lenny Bruce referred to him in a few routines as the epitome of the charming boy soprano.