Bobby Rydell was one of the biggest teen sensations in pre-Beatles America. Today he is sometimes dismissed as a prefab Bobby Darin because of his knack for taking on every style -- from pop to R&B to country. Unlike such greasy-haired heartthrobs as Fabian and Frankie Avalon, Rydell could really sing and didn't need to hide behind studio gimmicks. His female fans aged with him and kept Rydell going as a top concert draw.