Beyoncé stepped out on Saturday for Roc Nation's The Brunch, ahead of the Grammys.The singer wore a chic minidress by Francesco Murano, with a pair of strappy sandals.The star-studded event attracted a plethora of celebs including Rihanna, Kelly Rowland, and Sean "Diddy" Combs.In a completely unsurprising turn of events, Beyoncé looked absolutely stunning at Roc Nation's annual pre-Grammys brunch.Photographed at The Brunch alongside husband Jay-Z, Beyoncé was seriously chic in a gray minidress