In honor of today’s releases, I bring you another video (with much better sound quality) of the Harmonix team performing the Cartman version of “Poker Face,” courtesy of Joystiq.

That’s Rock Band communications manager John Drake on vocals, Harmonix co-founder Alex Rigopulos on drums, and if I’m not mistaken, I believe that’s MTV Games’ Jeff Castaneda on guitar. (I approve of the ‘do, Jeff.)

Joystiq also posted a couple other videos of goings-on at the Harmonix GDC party, both of which you can find embedded after the break if you don’t care to click through. Warning: Wanton male upper-body nakedness found within!

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