If anyone is bound to have a good time ringing in the New Year, it's Rihanna. The singer is celebrating at Jay Z's 40/40 club this year. A source tells us, "She booked a private room for her friends and family," and added that the room can hold up to 50 people. Unlike some other stars' New Years Eve plans, RiRi won't be hosting this event. A source explained, "She's chosen to party here which is very different from hosting. There will be no host, just our regular New Year's Eve party."