1968? I think so. Early '69 tops. Didn't I say recently that it's amazing, totally amazing, how fast music came along in the 1960's? From Del Shannon, Leslie Gore and early Motown, to Surf Music and the British Invasion, to Jimi Hendrix and Cream, to Acid Jazz and Newyorican Soul and beyond in a heartbeat, with hundreds of shades of variety in the mix.
The drugs were better in the Seventies, but those Sixties, they just may have been the days.