Lollapalooza celebrated its 20th anniversary this weekend at Grant Park in Chicago. It featured sets from Coldplay, Best Coast, Foo Fighters, Cults, Lykke Li, Beirut, Titus Andronicus, Black Lips, Smith Westerns, the Mountain Goats, Local Natives, and many more. Photos by Kirstie Shanley.

Check out a selection of shots after the jump, then head over to our photo book for some full-size snaps. And stay tuned for a full review in the features section.

And don't forget to stop by our Facebook page for even more photos.