Spotify is often credited as the music service most in tune with the 'pirate' mentality, having converted millions of former file-sharers in recent years. Interestingly, according to writer and researcher Rasmus Fleischer, a decade ago the site actually populated its beta with pirate MP3s, including some that were only available on The Pirate Bay.
This is common knowledge, i thought. Im fairly sure it was even marketed as such. Then they went corporate.