A while back I wrote about Mountain Dew’s Green Label Sound for a column called “Selling Out: The Next Level,” in which I argued that corporate patrons might offer musicians an attractive alternative to the traditional label system. But soft drink manufacturers potentially taking the place of moribund record labels isn’t the point at the moment. Right now the point is free vinyl.

Though Green Label Sound has until now dealt solely in MP3s, it’s just issued the first four songs it released—by the Cool Kids, Flosstradamus with Caroline Polachek from Chairlift, Holy Ghost, and Matt & Kim—on vinyl. They’re giving away five sets in a Twitter-based contest that ends tomorrow at 3 PM EST. Details are here. Videos from the Chicagoans represented are after the jump.