Summer may be unofficially over, but there's still some outdoor fun to be had! This weekend, the 7th Annual Hideout Block Party features a heapin' helpin' of great local (Andrew Bird, Waco Brothers, Kelly Hogan, various Poi Dogs) and imported (Erase Errata, Demolition Doll Rods, the Dirtbombs) musical entertainments. There's even a kids' stage with Twang Bang! Proceeds benefit Tuesday's Child, PLAY, and Alejandro Fund. Festivities occurring in and around the Hideout, 1354 W. Wabansia, Chicago.