** THE WU BIN: Saturday, Louis Boston is teaming with Rocca Kitchen & Bar for a preview of designer Jason Wu's spring/summer and fall/winter '09 collections. The up-and-coming Wu, the designer behind Michelle Obama's inauguration gown, has been featured at Louis Boston since last fall, and customers will be able to purchase Wu's designs during the showcase. John W. Murphy, Wu's director of sales, will be on hand for the event. 234 Berkeley St., 11 a.m., 617-262-6100, louisboston.com.

** ROCK-A-WEAR: Allston's Rock City Music & Style show goes down tonight at Great Scott, featuring local looks for the village's wide array of retailers, including 379 Club, the Alter Eco, At The Buzzer, Circus, Horror Business, LAB Boston and Stingray Body Art. TAB the Band, Casey Desmond and Fluttr Effect provide the tunes. 1222 Commonwealth Ave., 9 p.m., 18-plus, $10, 617-566-9014, greatscottboston.com.