This weekend marked the opening of the new MGM Grand at Foxwoods in Connecticut, and everybody who’s anybody (just kidding — make that “some celebs who aren’t special enough to be in Cannes right now”) were in attendance. Diddy even had his own “den” at the opening gala, whatever that means. Check out more pictures after the jump — with Alicia Keys in jeans and Tichina Arnold and Kim Kardashian in evening gowns, I’m guessing something was lost in translation on the invite.