thing is happening in bangladesh, what can we do? and that created the first major superstar benefit concert ever done. >> the concert for bangladesh was the granddaddy of all issue-themed concerts. and not only did you get george harrison, man, you got eric clapton. >> it got dylan out of hiding. it put two beatles back on the stage again. it was unparalleled at the time and it may still be unparalleled. >> a great deal of music of the '70s was people who had succeeded in the' 60s finding new ways to express themselves in the '70s. >> have you got any idea why your group particularly has lasted as long as it has? >> because we stay together, i suppose.