Twenty One Pilots perform at Golden Gate Park in San Francisco during the Outside Lands Music Festival on Aug. 9, 2019. Photos: Joaquin Cabello, Holly Horn and Roman Gokhman. SAN FRANCISCO — The annual Outside Lands Music Festival kicked off Friday with Twenty One Pilots, The Lumineers and dozens…

These just under-the-radar artists should be on your must-see lists at Outside Lands. Left to Right: Top row: Brasstracks, Denzel Curry, half•alive and Lauren Daigle. Middle: Still Woozy, Taylor Bennett, The Funk Hunters and ALLBLACK. Bottom: Luttrell, Nahko and Medicine for the People, PJ Morton and Shallou. The magnitude…