(4/6/10 update: the Lollapalooza 2010 lineup has been officially announced)

The lineup for 2010 appears to be leaking like a sieve. Citing “multiple industry sources,” the Daily Swarm claims that Lolla headliners include , and a reunited Soundgarden. The Chicago Tribune’s Greg Kot is reporting that Lolla organizers are also in negotiations with Arcade Fire and The Strokes as possible headliners. Kot also mentioned a number of other bands confirmed for Lolla 2010, including: , , , , and .

The full lineup announcement isn’t supposed to be due until some time in April, but it looks like Perry Ferrell and C3 Presents may have a tough time keeping it under wraps. All the more fun for all of us though, right?

2010 is slated for August 6-8 in Chicago’s Grant Park. Check out Lollapalooza.com for more info.