The man who began the year-end craze works his magic.  

DJ Earworm has been compiling this "United State of Pop" mashup since 2007. Crazy to think how far the mashing world has come since then, but Earworm has certainly not lost a step. General consensus seems to indicate that this may be his best yet. 

Also, I know that all pop songs sound basically the same, but is there ANY difference between the baseline of Flo Rida's "Good Feeling" and Ke$ha's "Die Young?" Any at all? 

[H/T: VVV]