Big Grams vocalist Sarah Barthel performs at the Lands End stage during Day Two of the Outside Lands music festival at Golden Gate park in San Francisco, Calif., on Saturday, Aug. 6, 2016. (Ray Chavez/Bay Area News Group)
Big Grams vocalist Big Boi performs at the Lands End stage during Day Two of the Outside Lands music festival at Golden Gate park in San Francisco, Calif., on Saturday, Aug. 6, 2016. (Ray Chavez/Bay Area News Group)
Big Grams vocalists Big Boi, left, and Sarah Barthel perform at the Lands End stage during Day Two of the Outside Lands music festival at Golden Gate park in San Francisco, Calif., on Saturday, Aug. 6, 2016. (Ray Chavez/Bay Area News Group)
