I thought the songs he picked for the Angry White Boy Polka were perfect. He used the music of the nu metal and rap/rock bands, which I was hoping he'd include on this album somehow. My first listen through I heard songs by Limp Bizkit, Staind, Eminem, Disturbed, POD, System of a Down, Rage Against the Machine, and Kid Rock. I also recognized the lyrics where he's singing "I'm gonna get free," but I can't name the band, because it's one of those Vines/Hive/Stripes/etc groups, who I cannot distinguish. Besides those, there were quite a few lines I couldn't tell where they originated from. I liked the selection he picked, but I mostly listen to the radio stations that play rock music, so those groups have all had lots of air time in the past few years, mainly 2000-2002. If you don't listen to rock radio, then I can see why maybe, such as in LIMP's case, you wouldn't recognize the originals.