What are you doing tonight? Nothing? Great, now you have plans: Parsons is bringing out a few of its big guns on the designer alum circuit (and, of course, Tim Gunn) for “b the next,” a shopping bash at Bloomingdale’s UES flagship this eve from 6 to 8 p.m. Pourquoi? To support whippersnapper wannabe designers via the school’s Pre-College Scholars Program. Former Parsons-ettes like Narciso Rodriguez, Tracy Reese, Lela Rose, Mara Hoffman, Alejandro Ingelmo, Carmen Marc Valvo, and Kay Unger will be on hand for the occasion; find ’em in the designer collections on the department store’s fourth floor. Let the shopping commence!