They say good things come in threes, and for San Francisco’s music lovers, Golden Gate Park’s trifecta of summer concerts has been solid proof.

Friday’s “ revival ” of the past two music-filled weekends is set to be headlined by country star Zach Bryan, who’ll be joined by the Kings of Leon, Turnpike Troubadours and Noeline Hoffman for a one-day show hosted by Another Planet Entertainment, the concert promoter behind Outside Lands .

The group launched its Concerts on the Polo Fields series last summer with a sold-out show by System of a Down and Deftones and has expanded this year, effectively shutting down Golden Gate Park to host Dead & Company , Outside Lands and Bryan on consecutive weekends.

Bryan’s appearance in San Francisco is one of few he’s making this year, after wr

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