Zac Posen

Pride Month brings out Hollywood's most colorful side ... and the stars don't exactly believe in subtlety. From rainbow fits to glitter-drenched celebrations, the A-list takes over the streets and turns them into one giant runway. Leading the charge are Trisha Paytas, Zac Posen and Sami Sheen ...…

Heidi Klum nearly posted one of the best photos in the history of Instagram ... if only designer Zac Posen had kept his damn hand to himself. Klum, wearing nothing but a pair of tiny panties, posted the photo with the caption: "@zac_posen ....I need something to wear for tonight's @projectrunway…