Lollapalooza will release its 2010 lineup tomorrow, after a small peep last week in which they offered a few days of revealing looks at their line up with only certain letters being revealed one at a time. The last announcement was titled "Give Me An 'I."
Soundgarden officially confirmed their headlining slot today via their web site, saying "We are proud to announce the official launch of Soundgardenworld.com. We will be adding more content in the very near future, so stay tuned. One last thing....Soundgarden will be one of the headliners at this years Lollapalooza festival."
Acts rumored to be at this year's Lollapalooza include Arcade Fire, Dirty Projectors, the venerable Lady Gaga, Bright Eyes, The Flaming Lips and MGMT. Tickets are currently on sale and available here.
Lollapalooza happens on August 6th - 8th in Grant Park in Chicago. Check out the Spacelab Festival Guide for more information on Lollapalooza.