An alternative music institution since 1991, Lollapalooza has brought a great festival to the masses with many of the top artists for years. Razorgator has your Lollapalooza Festival tickets for purchase today! The 2011 Lollapalooza lineup features Eminem, Foo Fighters, Coldplay, Muse, A Perfect Circle, and many more! Make your travel arrangements and head to Chicago's Grant Park this August for Lollapalooza 2011.