Guitarist Nels Cline performs with Wilco on the Lands End main stage during the Outside Lands Festival in Golden Gate Park in San Francisco, Calif., on Friday, Aug. 7, 2015. (Jane Tyska/Bay Area News Group)
Lead singer and guitarist Jeff Tweedy performs with Wilco on the Lands End main stage during the Outside Lands Festival in Golden Gate Park in San Francisco, Calif., on Friday, Aug. 7, 2015. (Jane Tyska/Bay Area News Group)
Fans listen to the St. Vincent set featuring vocalist Annie Clark on the Lands End main stage during the Outside Lands Festival in Golden Gate Park in San Francisco, Calif., on Friday, Aug. 7, 2015. (Jane Tyska/Bay Area News Group)