Gregg Gillis has way more fun than anyone should have. The scrawny, floppy-haired musical mad scientist behind Girl Talk always seems to be bouncing out of his skin, with a big, goofy grin plastered on his face, which is invariably illuminated by the glow from his plastic-wrap-covered laptop. I’ve seen GT three times this year and every time it was one of the best parties I’ve ever been to.

Because, at the end of the day, Gillis does the one thing most bands have forgotten they’re supposed to do: He makes sure every single person at his show is having the absolute best time … ever. And you could tell they were, from the GT-simulating fashion on display – gold lamé leggings, tie-dyed union suits, 1980s prom dresses and way, way too short shiny mini skirts for girls, headbands, ironic T-shirts, H&M hoodies and Day-Glo Chuck Taylors for boys – to the sweaty, nonstop dancing on the sold-out floor of Bogart’s.

Almost more amazing than Gillis’ ability to mix Lil Wayne’s “A Milli” with a NIN instrumental and the Clipse’s “Wamp Wamp,” or sliding from Ol’ Dirty *** to the Beatles, Cheap Trick, M.I.A. and Jay-Z in the span of a few minutes, is his skill at turning what looks like not much into a whole lot. His “set” essentially consists of a folding table with a few lights lashed to it with green gaffers tape, a couple of monitors and, well, that’s it. There’s a screen in the back that shows random images (including the cover of Time magazine with President-elect Barack Obama on it that drew the biggest cheer of the night) and two assistants who spend all night pelting the audience with toilet paper, streamers, confetti and beach balls. And, of course, the by-now-obligatory group of 35 or so audience members dancing onstage and periodically grabbing Gillis in order to a) rip off his shirt, b) request a song or c) distract him long enough to take a picture of themselves next to him.

With a crowd whose average age appeared to be around 18-22, what was fascinating is the roar of applause for songs that came out before most of the dancers were born, most notably songs like “It Takes Two” and “Louie Louie.” The shout-along to those songs made my wife lean over and quip, “How do they even know these tunes? It’s like me getting all jacked up about a song from the flapper era.”

Congratulations Gregg! Not only do you make the kids dance, you teach them a bit of musical history at the same time. Well done!

Check out all of GKaufman’s uploads at yourhere.mtv.com…