All three-day passes have sold out.
Single-day tickets went on sale Tuesday and costs $95 per day. A limited number are available for August 3 - 5.
Lollapalooza listed its daily lineup Tuesday, with headliners Black Sabbath and the Black Keys playing Friday. Red Hot Chili Peppers play Saturday, and Jack White plays Sunday.
For more information, visit www.lollapalooza.com.