P.F. Sloanpened tracks like Johnny Rivers' "Secret Agent Man" and Barry McGuire's "Eve of Destruction,"
Sloan created and played a guitar introduction as a hook to a new song by John Phillips entitled "California Dreamin'", and the same backing track was used for the hit version by Phillips' group the Mamas & the Papas,
Due to its line "You're old enough to kill, but not for votin'", "Eve of Destruction" was used as a rallying cry by supporters of the Twenty-sixth Amendment to the United States Constitution, which changed the voting age from 21 to 18 as of 1971