It was essentially Madonna's after-party at that risque cabaret the Box last night. Earlier that evening, she and buddy Justin Timberlake played a performance, billed as a thank-you show for her successful record release, at the Roseland Ballroom. Joining friends like Domenico Dolce, Elizabeth Saltzman Walker, Rosie O'Donnell, Benjamin Cho, Ingrid Casares, Ingrid Sischy, Sandy Brant, Byrdie Bell, Leigh Lezark, and a slew of others who one couldn't identify in the seedy, dark environs, Madonna sauntered in swaddled in furs ("Could she be wearing more dead animals?" one person uttered, adding with a sigh, "She's so Madonna!") and balancing a martini between her well-manicured fingers. She only stayed for one of the evening's performances. Apparently she still loves shock value, but the Material Girl is totally a mother now. Let me describe the scene…carefully. Picture it: At the front table, Madonna huddles between Timberlake and Steven Klein. The lights go down, and the glittered and tattooed MC, called Raven O, takes the stage. The performances begin: a marching band's rowdy rendition of Britney Spears' "Gimme More"; a woman dressed as an oversize female reproductive organ slow-dancing with a giant glitter tongue. Then a masked marionette stumbles onstage and produces a Russian doll in the most sacred of ways. A few minutes later, she rewinds. The crowd goes wild. (At least, so I thought. My eyes were bleeding.) There was a lot of cheering and yelling, even from Madge herself. Then again, maybe that was just her celebrating. "Hard Candy," her eleventh studio album, is fast becoming another record-breaker for the unstoppable, knows-not-age force. Remember, she'll be 50 in August, people!