On April 6, Lollapalooza organizers revealed the lineup for the 2010 festival, scheduled to take place at Chicago's Grant Park from August 6 through 8. Lady Gaga will bring her "Monster Ball" act to the Lollapalooza stage. Lady Gaga previously performed at the 2007 edition of Lollapalooza; the then relatively unknown made an appearance on the festival's small BMI stage.