If “industry sources” and staffer leaks are to be believed, this year’s Lollapalooza is going to be heavy on the rock’n'roll this year.

The Chicago Tribune is reporting a whole slough of acts slated to play the August 2-4th Chicago festival. Among them are Mumford & Sons, Phoenix, The Postal Service, Vampire Weekend,  The Killers and The National, those are just a few of the not-unlikely bands that are rumored to be taking the stage at the city’s downtown Grant Park. It makes sense: Mumford & Sons are headlining Bonnaroo, Phoenix and a reunited Postal Service are headlining Coachella, while Vampire Weekend, Phoenix and The National have new albums dropping this spring. The Killers, meanwhile, released a new album, Battle Born, last year.

Predicting (and parodying) festival lineups has become its own kind of music news nerd sport, and the game has only ratcheted up this year. Two seemingly unlinked Twitter accounts, @TheLollaLeaker and @AgentofLolla, sprung up in the past month, each with the intent of breaking the news of the festival’s lineup.

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