Odd Future's ethic of rowdy, self-aware antagonism extends across genres and subcultures. The variety of its young misanthropic fans — skate rats, hip-hop heads, hipsters and some tweens who probably lied to their parents about their night-out plans — mirrors Odd Future's mashed-up style, with its rap-scene in-jokes and riffs on Internet troll culture. But its main event is a showcase for the charisma and skill that have kept Odd Future the most exciting hip-hop ensemble since Wu-Tang Clan stalked Staten Island's Shaolin. The Observatory, 3503 S. Harbor Blvd., Santa Ana. 8 p.m. Sun. $35. http://www.observatoryoc.com.