WATCH: DJ Earworm - United State of Pop 2009 (Blame It on the Pop) Once again, DJ Earworm puts together the US Billboard Top 25, this time using that omnipresent Black Eyed Peas song about tonight being a good night I managed to avoid until Lil' Wayne went at it on No Ceilings as a backbone. On evidence of this, the overiding message in last year's popular Americana was one of IGNORNING THE ECONOMY and CARRYING ON REGARDLESS. Bess, you, pop music, you big doofus.

Anyway, in the spirit of science, here's last year's.