Ace photographer Carina Mastrocola is sending us photos faster than we can post 'em, so stay tuned -- this is just what we could upload before running over to see Tegan and Sara this afternoon. More from yesterday's festivities (and today's) on the way . . . but make sure to scroll down for Daft Punk's jaw-dropping, George Lucas-worthy stage set . . . plus Lolla founder Perry Farrell, dressed up like the Fonze, letting out his inner David Lee Roth.
Lollapalooza 2007, Day OneChicagoAll photos by Carina Mastrocola