The NBA 2K13 Launch Party was held last night  the 40/40 club in NYC!  Of course a ton of athletes/celebs came out to celebrate including Derrick Rose, Kevin Durant, Brook Lopez, Kris Humphries, Jay-Z, Jersey Shore cast members, Nas, Iman Shumpert and more.  2K13 hits stores October 2nd.  Check out the pics: GameTimeGirl & TatWza