Nobody's hotter than Rihanna right now. Did you catch her on 'SNL' in early December? Girl is made for HD. How about dipping her toes in the surf a week ago? God bless Barbados, her mama, Jay-Z, and whoever else is responsible for bringing RiRi into the world and sharing her with us. Though we can't say we've gotten as much of the star as we'd like. That privilege has been reserved for only a special few. On Monday that list became one stud longer as photos surfaced depicting Rihanna ringing in the new year in Dubai and Mexico with Dodgers slugger Matt Kemp. Who is he and what's he got on Chris Brown, Josh Hartnett and the other men of Rihanna's past?