Check out some pics from Greystone Manor's Hennessy Halloween party. We found Jermaine Dupri floating in space, "King" Christina Millian, Neyo as an R&B crooner, Drumma Boy dressed as a Super Producer,  and Hit boy and Joie Chavis too. Chris Brown and Karrueche were present (but sat at separate tables) and did not pose for the camera, but all had a great night.