*First line is the band name. 1967. Brits named this song the top song of all time along with Bohemian Rhapsody by Queen. It was one of the themes of the Summer of Love. It has been covered over 1,000 times. It has a Bach-derived instrumental melody, soulful vocals, melancholic tone, and unusual lyrics. The title came from something overheard at a party. The song sold more than 10 million copies making it one of the most successful singles of all time. They named themselves after a cat, however, they wrote the name down wrong so it was misspelled.