Celebrities like Jay Z, Nelly, Jamie Foxx, Rihanna and Kim Kardashian all brought in the new year in Las Vegas. Kim Kardashian was at TAO where she debuted her 1st single and Rihanna at PURE inside Caesars Palace. Check out the dresses they're wearing, I love Rihanna's red, sheer maxi dress, and Kim wore a signature Kim Kardashian look with the shimmering, white mini.