When Lollapalooza ends for the day, the party is just beginning. All across Chi-town you’ll find reasons to grab that second wind. NBC Chicago has been sniffing out the places to be, from secret shows and exclusive sponsored shindigs to celebrity DJ sets and intimate encore performance by artists fresh from performing the festival. If you’re still thinking of calling it a night, consider that your wristband can get you special treatment in the form of drink specials and entrance into the best parties. There’s even a rumor that Dave Grohl is debuting a supergroup consisting of certain former members of Led Zeppelin and Queens of the Stone Age. Who knows?