Jay-Z VS Owl City "Run This Firefly" (DJ Tripp Mash) from DJ Tripp on Vimeo.
NSFW for language, probable mild homophobia.1
1 I know, I know. But it's only two words in a five-minute song, and the words are, in context, sort of ambiguous. Or at least I'm sufficiently unfamiliar with Jay-Z to know how to interpret them. Odds are it's bad, but the rest of the mashup is so damned catchy that I kind of don't care. Shame me if you feel you must.