Island Def Jam’s top boss LA Reid had a lot to celebrate at last night’s Grammy Awards. A bunch of the artists on his label took home some big awards, including Rihanna (photoed above), who snagged two trophies for her collaboration with Jay-Z and Kanye West, “Run This Town.”

Reid held an intimate dinner party, hosted by Jay-Z, at Cecconi’s restaurant to help the winners celebrate.

Others who turned out for Reid’s bash included Beyonce, Jennifer Lopez, Justin Bieber, Usher, Natasha Bedingfield, Ciara, and more.