Even when you consider the cultural cross-pollination that goes on in large metropolitan areas, L.A.'s Dengue Fever had perhaps the strangest genesis of any band in recent memory. It's odd enough for a group of white musicians to cover psychedelic rock oldies from Cambodia, but finding a bona fide Cambodian pop star to front the band -- and sing in Khmer, no less -- is the kind of providence that could only touch a select few places on Earth. Formed in L.A.'s hipster-friendly Silver Lake area in 2001, Dengue Fever traced their roots to organist Ethan Holtzman's 1997 trip to Ca...