You know this of course. It's a garage classic from 1966, and very much a song of two halves. The verses are pretty much cornball beat music and could have come from any number of popular '60s combos. What makes this stand out are the freakout sections, with John Byrne's acid guitar being one of the foundations for heavy psychedelia. It's frenzied scratchy intensity with added harmonica, just so you remember what decade this is. Still sounds great 50 years on!