The line-up for this year's Lollapalooza is crazy!

More than 130 artists and some of the biggest names in music are set to perform Aug. 1-3 at Chicago's Grant Park. Lorde is just one of the many headliners on a program that includes Kings of Leon, Skrillex, Nas, Outkast.

The festival has a good reason to bring in so many artists -- this year marks the 10th anniversary for Lollapalooza in Chicago.

Tickets are on sale now at Lollapalooza.com