13th Floor Elevators "You're Gonna Miss Me," a psychedelic song mainly known (other than for Roky Erickson's subsequent descent into insanity) for the use of the electric jug.
Roky basically got caught with some weed, pulled an insanity defense, which was slightly true, but ended up in a One Flew Over the Cuckoo's Nest situation, ending up even crazier than before after ECT and a bunch of other psychiatric voodoo of the time.
As long as we're on psychedelia, here's this absolutely ridiculous and incredibly British video of Pink Floyd during Barrett's tenure of Astronomy Domine, where there's some parody of an upper-class Brit, who is actually an obvious German Nazi, smoking a cigarette while dissing the band before playing Astronomy Domine, then contemptuously questioning them about it.
What's funny to me is it's actually a lot better than current journalism. The Nazi, who obviously despises the Floyd, still doesn't interrupt them and actually allows them to answer his questions, and plays their whole performance (of one of the best songs on Piper), and they have a semi-civilized discussion, while obviously despising each other, and the host reserves his final moment for a contemptuous comment.
I'd like to watch more groups interviewed by this guy, because he's obviously a complete asshole, but not an idiot.
ETA: Apparently his name is Hans Keller and he is famous both as a musician himself and as a music commentator. He still comes across as a parody of an Austrian, despite being an actual Jew.