9. The FBI Once Investigated a Song for Two Years
Nowadays the FBI only investigates serious things that may put us all at risk, for our protection. But back in 1960, so not even that long ago, the FBI put a song through a number of audio tests because some people claimed it contained subliminal messages. The song in question? “Louie Louie” by The Kingsmen. The best part about this is the final report, a 120-page document which concluded that the song was, in fact, not an attempt at brainwashing anyone.