The longer Lollapalooza organizers wait to unveil the lineup for this year's festival, the more people will speculate. The Chicago Tribune and Billboard already leaked the news that the [article id="1606562"]Beastie Boys, Depeche Mode, Kings of Leon and Jane's Addiction[/article] will be among this year's headliners.

And over the weekend, the Tribune added a few more names to that list: the [artist id="1244299"]Killers[/artist] and [artist id="1149"]Tool[/artist], who will reportedly fill out the remaining headliner slots for the three-day festival (August 7-9). Another act the paper says you can count on is the [artist id="1228709"]Decemberists[/artist], who might play their new concept album, The Hazards of Love, in its entirety, just like they did at [article id="1607284"]South by Southwest[/article].

The story also confirms that punk godfather [artist id="1126"]Lou Reed[/artist] has been asked to play a late-afternoon/ early-evening greatest-hits set. A spokesperson for the festival would not comment on the latest rumors and reiterated that the official lineup will be released on April 21.

The Tribune isn't the only Chicago paper speculating about the schedule. An article in the city's alt-weekly, the Chicago Reader, took a slightly more scientific approach to the task by looking at the festival's notorious blackout window for artists, which, according to writer Jessica Hopper, can bar an act from playing within 250 miles and 120 days of Lolla.

Using that logic, Hopper reverse-engineered a lineup by figuring out which acts appear to have Chicago-centric holes in their U.S. tours between April and Lollapalooza, or who might have priced out of Pitchfork's rival Chicago festival. On the basis of those parameters, Hopper offered up a possible return from Girl Talk, as well as potential sets from Bon Iver, No Age, Peter Bjorn and John, Animal Collective, Atmosphere, Bat for Lashes, Jason Mraz and Lykke Li. She even speculates that Taylor Swift -- who has an apparently open spot on her tour on August 7 -- could pop in, as well as hometown heroes Fall Out Boy, M.I.A. (who just confirmed her first post-pregnancy date for Coachella next month), PJ Harvey and maybe Lil Wayne, though he has a gig in nearby Hoffman Estates on April 10, 111 days before the festival.