Hot designer Zac Posen threw a little LA Fashion week soiree for some of his closest celebrity friends last night. Bilson, ever the Posen devotee, was in attendance and cute as a button (which is obviously thrilling), but, not that it means anything, without a date. Demi was also at the party looking hot and decidedly unpregnant in her formfitting dress (recently seen on Naomi, too). I'm no fashionista, but judging from how great all these celebs looked last night (and they must have all been wearing his stuff, yes?) it's no wonder why Mr. Posen is so popular these days. Plus, he's kinda cute (in that 3/4 length sleeve jacket wearing way).
To see a full gallery of pics including more Demi, Dita, Felicity Huffman, Michelle Trachtenberg, Justin Chambers, Rose McGowan, Kate Walsh and tons more just
Images include Zac Posen, Demi Moore, Dita Von Teese, Felicity Huffman, Alexandra von Furstenberg, Justin Chambers, Anjelica Huston, Eric Dane, Rebecca Gayheart, Gina Gershon, Kate Walsh, Michelle Trachtenberg, Rachel Bilson, Rose McGowan