If anyone thought that Dita Von Teese was just a passing character upon the pop culture stage, they'd be advised to take a closer look. With celebrated and attention-grabbing acts, a new book, Burlesque and the Art of the Teese (Regan Books), due this spring, and a recent high-profile marriage to shock-rocker Marilyn Manson, this queen of burlesque is proving to be the sort of multifaceted player who is anything but a flash in the pan. Here, she grabs the attention of someone who knows a thing or two about the powers of seduction--Yves Saint Laurent creative director Stefano Pilati, who happened to have his own reasons for celebrating on the day they spoke.