It's been two years since Christian Louboutin made a personal appearance at Barneys—and judging by the scene in the store's fourth-floor shoe department, people had been itching for that Loubie fix ever since. The line to meet the legendary footwear master was never less than a couple dozen deep, and a well-placed source told us that he had already moved six figures' worth of sales in the first half of his four-hour appearance. The fact that he was signing the trademark red soles, it seems, proved to be too enticing an option not to leave with a new pair. Or two or three. (Although we did spot a few Nordstrom bags and styles that weren't offered by Barneys. Sneaky foot fetishists!) Patti LaBelle, however, took the prize for extravagance. The diva showed up with a Louis Vuitton trunk jammed with her personal collection and made the designer sign as many as his Sharpie could bear. Byrdie Bell, on the other hand, was more demure. The actress' nude leather peep-toe platforms were the last ones to be personalized by the designer—with a signature and little hearts all over her left sole. "I'm having flashbacks to when I had Kate Spade sign my first Kate Spade bag at a Saks in Greenwich," Bell said. "But who doesn't love a Loubie?" And unlike some of the other shoppers who planned on using their autographed heels as art, Bell wears hers and even did so on her way out of the store.