The Internet has brought us many wonderful things (ninja cat!) and many horrible things (see any episode of Tosh.0) but undoubtedly one of the most controversial aspects of the internet is the ability to download music. From Napster (flashback!) to The Pirate Bay, our ability for instant-musical-gratification is unparalleled. These five songs are, according to Nielsen SoundScan (“the official method of tracking sales of music and music video products throughout the United States and Canada”), the most downloaded of 2012. Thank you, Internet.