For more than forty years, photographer Bob Gruen has documented the rock and roll music scene. In the process, he has created some of the most well-known images in modern music history, including the iconic photo of John Lennon in a "New York City" t-shirt.
Gruen's work is compiled in his latest book "Rock Seen," in which he shares anecdotes from his career and some of his legendary pictures. The 65 year-old photographer is still in the music scene and is currently working with Green Day.
Today on American Morning, Gruen sits down with Alina Cho to discusses some of his favorite memories from his career and to explain how he was able to capture his most famous photographs.