Photos: The Most Star-Studded Parties of the Week

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Fashion models, designers, actors, rappers, and everyone in between rubbed shoulders and dolled up as they made their rounds to the abundance of galas, screenings, book launches, and champagne-fueled festivities this week. Marky Mark, 50 Cent, and Terry Richardson plus thumb were spotted at a screening for Pain & Gain. The 2013 Tribeca Film Festival Vanity Fair Party dripped in glam, with a guest list that included Vera Wang towering in sky-high Walter Steiger shoes; a pregnant, belly-cradling Evan Rachel Wood; Oprah's BFF; Zac Posen; and more. Jenna Lyons, per usual, looked perfect in J. Crew at the EDIBLE SCHOOLYARD NYC's Spring Benefit, which Jake Gyllenhaal also graced with his scruffy, dapper presence. Olivier Zahm wore a "Homerun" cap with aviators, while Jeremy Scott partied in a golden leather suit of his own design. And of course, the adorable Bill Cunningham was also in attendance with his camera in hand. Click through the slideshow to see all this and more from the week's best parties from both coasts.

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