Hiero Day, the long-running annual Oakland block party, will be free this year, organizers have announced. The initial lineup announcement includes Chicago legend Common, a rare live appearance by Paris, L.A.’s Project Blowed maestro Abstract Rude, Ultimate Breaks and Beats co-creator Breakbeat Lou and others, with more to come. As is custom, the Hieroglyphics crew and its various incarnations will also perform.

Hiero Day takes place Monday, Sept. 4, and serves as a de facto 30th anniversary celebration of Souls of Mischief’s debut album 93 Til Infinity. Now that admission will be free, those who had bought tickets for his year’s Hiero Day will be refunded, organizers announced.

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