The Beatles - Tomorrow Never Knows. Incredibly underrated Beatles song by the general public. Maybe the most innovative and influential rock song in history. The first rock song to ever use flanging and tape loops, it changed the course of rock music for years to come. Listening to this song for the very first time back in 1966 would be comparable to a Lamborghini pulling up to your Model T in 1908, simply mind-blowing.
A few comments i've seen, this is John Lennon singing "Tomorrow Never Knows" upside down. They DID say the Beatles always broke rules. Hard to do when working the same studio for 7 years. Kudo's for Weirdness.