By Peter Lesser (staff@latinospost.com) | First Posted: Mar 28, 2013 02:25 PM EDT

Earlier this week, three-days passes for one of the summer's biggest festivals sold out in minutes. At first glance, this may not seem too surprising, except the lineup hadn't even been released. Several headliners had been confirmed and rumors circulated around other potential artists, but ticket buyers made their purchases relatively blind.

The official lineup is set to be announced April 9, the same day single-day passes go on sale, but it now looks like it's leaked early. Nothing has been confirmed, but Lollapalooza attendees may now learn if their purchases are worthwhile.

A poster for Lollapalooza 2013 gives fans a blurry glimpse at who may be gracing the stage at this summer's festival. Mumford & Sons, Phoenix, Vampire Weekend and The Killers were previously as headliners, but if the poster is correct, fans can expect to see the likes of Nine Inch Nails, New Order and Lana Del Rey take the stage as well. As a pleasant surprise, it looks like legendary British pop band The Cure has also been added to the bill, making this year's Lollapalooza one to remember.

Although the official Lollapalooza lineup will be announced April 9, Andrew Barber of FakeShoreDrive tweeted that "The Lolla list is the real deal. Confirmed."

Who knows? Regardless, the leaked lineup is sure to cause excited frenzy and speculation as April 9 approaches. Check out the full unconfirmed leaked lineup below.

Mumford & Sons, the Killers, Phoenix, Vampire Weekend, the National, the Postal Service, the Cure, Nine Inch Nails, Queens of the Stone Age, the Lumineers, Kendrick Lamar, Eric Church, Knife Party, Steve Aoki, Steve Angello,  Ellie Goulding, Thievery Corporation, Grizzly Bear, Lana Del Rey, Flux Pavilion, Band of Horses, Major Lazer, Hot Chip, Azealia Banks, Local Natives, Two Door Cinema Club, Crystal Castles, Dada Life, Tegan & Sara, Imagine Dragons, Beach House, Cat Power, Frightened Rabbit, 2 Chainz, Matt & Kim, Alt-J, Foals, Death Grips, Dillon Francis, Court Yard Hounds, Smith Westerns, Disclosure, Adventure Club, Ben Howard, The Vaccines, Griz, Father John Misty, Ghost, Modestep, Charles Bradley, DIIV, Alex Clare, Heartless Bastards, Baauer, Baroness, Lianne La Havas, Emeli Sande, Wild Nothing.

Jessie Ware, Atlas Genius, Haim, Angel Haze, Timeflies, Theophilus London, Monsta, Wavves, Io Echo, Unknown Mortal Orchestra, Icona Pop, Alvin Risk, Chance the Rapper, Lance Herbstrong, Jake Bugg, Wild Belle, Art Department, MS MR, St. Lucia, Shovels & Rope, Guards, Kill the Noise, Robert Delong, Little Green Cars, Deap Vally, Family of the Year, 360,  the Bright Light Social Hour, Twenty One Pilots, San Cisco, Hey Marseilles, Skaters, The Orwells, Palma Violets, Reignwolf, Astro, Pujol, Machines Are People Too, Planet Hemp, Yawn, Keys N Krates, the Neighbourhood, Cole Plante, Half Moon Run, The Mowgli's, Pacific Air, Lukas Nelson & P.O.T.R., Wheeler Brothers, Wake Owl, American Authors, O' Brother, the Dunwells, Houndmouth, Supreme Cuts, Brick + Mortar, Cherub, Makeshift Prodigy, Wild Cub, D-Pryde, Brooke Waggoner, Brite Lite Brite, Beast Patrol.

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