The Lollapalooza 2010 lineup has been announced here. On the bill: Soundgarden, Green Day, Lady Gaga, Arcade Fire, The Strokes, Phoenix, Jimmy Cliff, and many more.
Others in the Lollapalooza 2010 lineup:
Social Distortion, MGMT, Hot Chip, the Black Keys, The National, Spoon, Devo, Cypress Hill, Cut Copy, the New Pornographers, Erykah Badu, Slightly Stoopid, Grizzly Bear, Gogol Bordell, Chromeo, Wolfmother, Yeasayer, X Japan, MUTEMATH, Metric, Dirty Projectors, AFI, Mavis Staples, Matt & Kim, the xx, Drive-By Truckers, Blues Traveler, Edward Sharpe & the Magnetic Zeros, and a few dozen more.
Billboard.com talks about some of the Lollapalooza 2010 acts and what music they'll be performing.
Note on Lollapalooza 2010 tickets: the $190 advance three-day pass is sold out; the regular three-day pass is still available ($215), as well as VIP passes and travel packages.