Complex sentence: Dr. Rockzo's real name is Leonard Rockstein, the trouble-making son of a physical therapist who became lead singer of Zazz Blammymatazz, a partying rock band named after the guitarist.
Split into simpler sentences: Dr. Rockzo's real name is Leonard Rockstein; he was the trouble-making son of a physical therapist. Rockzo became lead singer of Zazz Blammymatazz, a partying rock band named after the guitarist.