Go HERE for more photos by DYLAN ARMAJANI, HERE for more pictures by JOHN CARTA.

Mena Suvari (left) joined Rachel Zoe, Kelly Rowland, Hilary Duff, and an unfortunately dressed Perez Hilton all gathered together last night to celebrate the eyewear collection of DSquared2.The party was held at the roof of Dean and Dan Caten's West Side Highway headquarter. DSquared2 (which, btw, is the most redundant label name ever) just launched a new eyewear collection that will be available in October.

Rachel Zoe                                         Kelly Rowland

Perez Hilton                                  Mena Suvari

Amanda Lepore                 Hilary Duff

Dean And Dan Caten, contrary to what you might think, are not Siamese twins.