If you aren’t all jazzed up about Fashion’s Night Out yet, the PSA, which just went live on www.vogue.com, should do the trick. With Diddy rapping, “Come on, let’s do it for the people, baby,” how could it not? Speaking of music, we hear that the Rodarte sisters have recruited the drag queen Justin Bond, a.k.a. Kiki of Kiki & Herb, to perform at their personal appearance at Barneys. It seems as if every square foot of the Madison Avenue store will be covered with designers, models, and showbiz types, but in particular we’re looking forward to catching the premiere of Coco Rocha’s “Fashionista” video, dropping by the Alabama Chanin sewing circle, and getting our copy of the new book Isabel Toledo, Fashion From the Inside Out, signed by the woman herself. For more details about the goings-on at Barneys and at stores across the city, click here.