LISTEN: 2012’s 25 Biggest Hits In One Mind-Blowing Mash-Up

Have you just been so busy this year? No time to listen to music at all? Then — this is major — your problems are now officially solved. To be fair, this comes as no surprise, because literally every single possible mashup in the world already exists. But still. The medley clocks in at less than four minutes, yet covers such favorites as Rihanna’s “Diamonds” and Gotye’s “Somebody That I Used To Know.” And for those of you who already know all t...