As far as festival lineups are concerned, it doesn't get much better or more diverse than Lollapalooza 2013. The three-day musical fete, set for Aug. 2-4 in Chicago's Grant Park, is already sold out, and considering the big-name headliners -- the Cure, Nine Inch Nails, Mumford and Sons and the Killers -- plus scores of other great bands (New Order, Vampire Weekend, Postal Service, etc.), it's easy to see why.

But if you missed out on buying tickets, all is not lost. We've teamed up with our buds in the great garage-blues (or maybe punk-Americana) band Heartless Bastards, who are playing this year's Lolla, to give away a pair of festival passes, plus an awesome merch pack. But that's not all: Our one lucky winner and their guest will sit on the side of the stage when the Bastards perform. (None of slopping-around-in-the-mud business for our loyal readers.)

Enter via the widget above, and click here for a complete set of rules. The contest runs until 11:59PM EST on Thursday, July 25. Note: The prize does NOT include airfare or hotel accommodations, so don't enter unless you live within driving distance of the Windy City or are willing to pay for a flight. Good luck!