News flash! Tuesday’s East Coast premiere of Caleb Teicher’s contemporary Lindy Hop extravaganza Sw!ng Out blew the roof of the Joyce Theater, Chelsea’s renowned dance oasis, to smithereens. The first hour showcases an all-star ensemble of 12 in ever-shifting, never-predictable dance constellations of sheer bliss. After intermission, the audience is invited onstage to join in. Watching from the sidelines, you’ll notice a dip in the choreographic invention, but the joy of participation offers compensation. Live music from by the Eyal Vilner Big Band is the cherry on the cake. The party continues through October 17. Don’t miss it. —M.G.