Festivalgoers crowd the Polo Field looking towards 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)
Guitarist Pat Sansone 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 crowd the front row as Wilco performs 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)