Popsugar Entertainment Summer Entertainment Summer Music Festivals 2019 27 Music Festivals That Are Bringing the Heat This Summer 24 March 2019 by Brea Cubit View On One Page Photo 25 of 27 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 25 Outside Lands Where: San Francisco When: Aug. 9-11 The headliner: Paul Simon Why we're excited: Simon is coming out of his brief retirement to headline this event, which means it's going to be a pretty special performance. See the full Outside Lands lineup. Previous Next Start Slideshow Summer EntertainmentMusic FestivalsMusicSummer