Sapo Wild and crazy guys for 30 years and counting, Culture Clash, backed by buoyant Los Angeles band Buyepongo, dishes up a fanciful melange, based on Aristophanes’ “The Frogs,” that takes dead aim at the country’s fractured immigration policies. The show is almost indescribable — hyper, nutty, bawdy, savagely hilarious — and unexpectedly wrenching. (F.K.F.) Getty Villa, Fleischman Theater, 17985 Pacific Coast Hwy., Pacific Palisades. Sun., next Sun., 4 p.m.; Fri., 8 p.m.; Sat., 4 and 8 p.m.; ends Feb. 18. $20; advance tickets required. (310) 440-7300.