Hey, y'all: On the 27th, slip into your blondest, bouffantest Movin' With Nancy wig and walk those boots of yours straight over to SUGARTOWN at Last Exit to Brooklyn (136 Atlantic Avenue, Cobble Hill, 718-222-9198). On the last Thursday of each month, from 10 p.m. to closing, DJ MATILDA VON CRUMBCAKE (a perky professional in the TV commercial game) spins a wide-eyed mixture of swell tunes by France Gall, ELO, Stereo Total, Trio, Go! Team, Altered Images, Eartha Kitt, and Palomar (and and and)along with a mélange of other surprises from her sleek CD wallet. Those wearying thoughts of love and other crimes that prey upon you so heavily during the day will all but melt away under her assured control of that ol' mixing board. Yippee-tie-one-on!