This American Songwriter feature revisits 1967, widely regarded as psychedelic rock's peak year, when even the genre's more experimental tracks managed to crack the Top 40 of the Billboard Hot 100 chart. The piece highlights how mainstream pop radio briefly embraced strange, boundary-pushing sounds as musical tastes shifted, and selects three songs it considers emblematic of that shift.

The list includes The Beatles' "Strawberry Fields Forever," which signalled the band's move from pop group to psychedelic act and reached No. 8 in the US and No. 2 in the UK; Strawberry Alarm Clock's "Incense And Peppermints," which topped the Hot 100 despite the band never repeating that level of success; and The Electric Prunes' "Get Me To The World On Time," a stranger, bluesier entry that peaked at No. 27 in the US.