♪ ♪ wherever he goes ♪ ♪ the people all complain ♪ >> lsd was not an illegal drug. when kesey held these acid tests, as they were known, they'd have two vats, one was punch and one was punch with lsd. >> the acid tests were like a party. the scene is a lot of light shows and music and people dancing. and when the dead were playing, it was a way to feel that acid in waves. and i looked down and i saw kids in front of me moving to the music. they looked up at me and i said, "yeah." ♪ >> the drug culture really took hold. and that's where artists, whether it was the grateful dead