2. Crosby, Stills, Nash and Young, 'Ohio'
Days after the Kent State massacre, Neil Young saw a photo of 14-year-old Mary Ann Vecchio kneeling over the dead body of college student Jeffrey Miller. He poured his rage and sorrow into the lyrics to "Ohio" and called his Crosby, Stills, Nash and Young bandmates into the studio the following day to record the new song. Even though "Teach Your Children" was all over the radio, the label rushed the finished product out, and it was playing over the air before week's end. CSNY broke up just a few months later, making "Ohio" their furious final statement – at least until the many reunion tours.