Singer Inara George can sound like the hippest and most swinging cosmopolitan chanteuse when she appears with The Bird & the Bee, her breezy indie-pop duo with Greg Kurstin. But she’s also got her rootsy, down-home country-folk side when she harmonizes with The Living Sisters. George also performs solo and has a new album coming out early next year. Her lulling folk melodies sound especially personal when she appears in her Topanga hometown, as she does tonight under the trees in the annual benefit for the late Will Geer’s sylvan outdoor performance space, Theatricum Botanicum. She’ll be joined by about a dozen musical allies, including Jackson Browne, Mike Andrews, Samantha Sidley, Alex Lilly, Wendy Wang, Joe Kennedy, Lexi Pearl, Gabe Noel, The Living Sisters and Merrick.