Crosby, Stills, Nash & Young made history over 41 years ago, when they rush released Neil Young's "Ohio" only days after the National Guard gunned down four students at Ohio's Kent State University during the campus' protest of America's invasion of Cambodia. The single was issued only weeks after CSNY's "Teach Your Children," which was steadily moving up the charts, in effect cutting the single's chances of hitting the Top 10. With each song vying for airplay, both were forced to settle for Top 20 honors -- with "Teach Your Children" peaking at Number 16 and "Ohio" topping out at Number 14.

In the bonus features of the new DVD CSN 2012, Graham Nash and David Crosby shed light on how the group made the decision to put social politics above their chart success. Crosby, Stills and Nash come to the Ryman this Friday (7/29) - DO NOT MISS IT! Here's the trailer to the recently released DVD...