Buffalo Springfield was a Canadian-American rock band active 1966-1968 whose most prominent members were Stephen Stills, Neil Young, Bruce Palmer, Dewey Martin and Richie Furay. Their most noted song, For What It's Worth, was a "protest" song. After some bad decisions, the group stopped recording and it was Stills who formed another group Crosby, Stills and Nash. Young chose a solo career. Maybe you have heard of them:)