If you weren’t aware that this was Lupe Fiasco’s third Lollapalooza, he’s happy to remind you, as an intro announced his history with the festival and welcomed the crowd to “Lupepalooza” before Lupe did push-ups and backflips to the theme from Rocky. It was the entrance of a superstar, and Fiasco played the role perfectly during his jumpy, effervescent Saturday evening set. Though he included some of the more lyrically complex entries in his catalog (like “Go Go Gadget Flow” and “Streets on Fire”), everything came across as a party anthem. Dressed all in white (save for shiny silver sneakers), Fiasco bounced about the stage and danced along with his backing group like the world’s most manic band leader. Their joy was contagious, as by the time Fiasco put the finishing touches on “Superstar,” the thousands presumably waiting for Rage Against the Machine were bouncing right along with him.