As with last year, Lollapalooza's heavily-protected lineup has apparently leaked nearly two weeks before its originally scheduled unveiling date of April 9th.

The photo, which is an alleged professional copy of the official billing (complete with artwork) was leaked last night on Twitter, forcing festival organizers to move up the official unveiling for Monday, April 1st.

On the apparent billing, which numerous sources have indicated is legitimate according to The Chicago Tribune, will be The Cure, Nine Inch Nails, Mumford & Sons, The Killers, Phoenix, and Vampire Weekend as headliners. Nine Inch Nails were previously rumoured when in early February when Billboard detailed the news of the band's reunion, and Chicago Tribune writer Greg Kot revealed the latter four headliners several weeks ago.

Along with the six formal headliners will be previously confirmed acts The Postal Service and The National, along with New Order, Kendrick Lamar, Queens Of The Stone Age, Major Lazer, The Lumineers, Hot Chip, Lana Del Rey, Grizzly Bear, Beach House, Steve Aoki, and many, many more.

For the entire lineup, check out the leaked photo here.

All three-day passes for the Chicago festival have already sold out, but VIP passes are still available. As well, single-day tickets will be made available April 3rd, due to the earlier-than-planned lineup release. Head over the official site (the ticket sale dates have not been updated on the site, as of yet) for more information.

The 22nd annual Lollapalooza music festival will take place August 2nd-4th in Chicago's history Grant Park.