3. Pink Floyd, 'The Dark Side of the Moon'
Pink Floyd's magnum opus hit just as pot was becoming mainstream in suburbia. It had everything you'd ever want from a stoner symphony: Grand, transporting melodies, synapse-ripping synth experiments and sound collages, intricate musicianship, state-of-the-art studio sound and John Lennon-meets-Thom Yorke lyrics like "The lunatic is on the grass/Remembering games and daisy chains and laughs/Got to keep the loonies on the path." Dark Side was a terrifying depiction of mental illness and capitalist excess and a withering assessment of the British class system. But prom committees throughout America couldn't resist selecting "Time" as their senior class theme song – perhaps because they were all so amazingly high.