The world can never have enough of flash sale sites.  It seems like there is a new one popping up every other day.  Last week, Amazon.com feted the launch of its new flash sale site, MyHabit.com, with a rooftop shindig at Skylight West Studios on the West side.  Oodles of designers, including Christian Siriano, Christian Cota, Bibhu Mohapatra, Diane Von Furstenberg, Waris Ahluwalia, Prabal Gurung and Rebecca Minkoff; model Brooklyn Decker and actress Vanessa Hudgens mingled with fashion insiders at the hush-hush party.  Brooklyn Decker, sporting a choppy cropped coif was kind enough to pose for photos and told us she was wearing a yellow Zara dress, Dolce & Gabbana heels and a Vera Wang necklace.

Actress Vanessa Hudgens wore a strapless, pleated Robin Brouillette gown and a Givenchy purse. She wasn’t as nice but we’ll cut her a break since it was so crowded on the roof. When asked who she was wearing, Vanessa told us “I don’t know, I’ll find out and find you.” Yeah right! Find us? As if!

Designer Christian Siriano with one of his models, wearing his tulip skirt, an asymmetrical top and blue pumps.

Designer Christian Cota and Mary Alice Stevenson in Lanvin.