I know I just posted a pop tune that was stuck in my head but this next video is just plane scary. The month is December so you know what that means, its year in review mash up time! If you get a few minutes today take a look at this video that mashes up the biggest pop tunes of the year and see if you notice anything. THEY ALL SOUND THE SAME. Seriously. Its like they all got into a room and used the same beats, the same words and the same production on every single. Scary that this is what the majority of Americans are listening to.