On stage in San Francisco, Zach Bryan and Kings of Leon debuted a brand-new, unreleased song titled “We’re Onto Something.” It carries the same honesty as “Bowery,” but with a little more edge, leaving fans completely locked in from the first note. The crowd swayed as Bryan and Caleb Followill’s voices blended together on the chorus:

Country music star Zach Bryan claims he won't be returning to one major Midwestern city after a back-and-forth with rival football fans. Bryan, 29, is from Oklahoma, but is a diehard fan of the Philadelphia Eagles.

San Francisco music scene heats up with Grateful Dead celebration, Outside Lands festival, Zach Bryan at Golden Gate Park.

Zach Bryan says to the crowd before he lets the fan introduce himself. Hayden, the fan, got strapped up with an acoustic guitar and shared with the audience that he hails from South Dakota. What a haul to head to Red Rocks and then San Fran to see the Oklahoma native.