Iggy Pop (born James Newell "Jim" Osterberg, Jr.; April 21, 1947) is an American singer, songwriter, musician, and occasional actor. He is considered an influential innovator of punk rock, hard rock, and other styles of rock music. Pop began calling himself "Iggy" after his first band in high school (for which he was drummer), The Iguanas. He was lead singer/songwriter of influential protopunk band The Stooges and became known for his outrageous and unpredictable stage antics. Pop's popularity has ebbed and flowed throughout the course of his…