NYE Its 2012 (Mashup) Feedback...

Hey guys, im trying to work on a track to play just after midnight (& Aude lang Syne) on New Year's Eve (NYE). Its just a little mash of some of the great tunes that i recall being big floorfillers on my dancefloor. Im a little unsure about "Loca People" and maybe even using the original instrumental for the last break, verse and outtro. Let me know what ya think please and keep in mind this is just a mock-up.
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I Like The Idea And Concept... Reminds Me Of My Old Mash-Ups... But You Definitely Need To Find Instrumentals That Are In Key... That's The Only Thing Bugging Me About It...

yeah, exactly what ADDiCT said. You need instrumentals that are in key.

I was gonna edit the key of the instruments.