Frank Mastropolo
Freelance journalist Frank Mastropolo is a former television network news producer. His rock concert photography, at mastropolo.com, is licensed by Corbis Images.
By 1968, Simon & Garfunkel had produced a string of folk-rock hits that included ‘The Sound of Silence,’ 'I Am a Rock' and ‘Mrs. Robinson.' But their chart success brought the duo criticism from folk music purists.
In 1972, the infectious strumming riff that opened ‘Listen to the Music’ introduced fans to the uniquely American sound of the Doobie Brothers. Their blend of rock and R&B produced a string of hits throughout the next decade. At age 40, ‘Listen to the Music’ remains a classic rock radio staple and the Doobies -- with founding members Tom Johnston and Patrick Simmons -- still maintain a busy tour schedule.