*People magazine tried to get to the bottom of a new paparazzi shots showing rapper Common and tennis star Serena Williams hitting a West Hollywood nightclub together over the Easter weekend.      

       One witness told the magazine that they were "affectionate," holding hands and kissing" during their night on the town. Reps for both Common and Williams declined to comment on their clients' personal life.      

       Meanwhile, Serena, who appears in Common's video for "I Want You," recently played the first ever tennis match on water as part of an event hosted by Sony Ericsson to launch the Sony Ericsson Open.

       Williams took on men's tennis star Rafael Nadal in what was billed as "The World's First Tennis Match on Liquid Terrain." The event took place Monday, March 24, 2008, atop Miami's new Gansevoort South Hotel overlooking South Beach.      

        The water-covered court was constructed in the 110-foot swimming pool set in the Gansevoort's exclusive 22,000-square-foot rooftop retreat. A specialist underwater team took five days to construct two invisible platforms at either end of the pool using a combination of bespoke acrylic sheets and supporting acrylic tubes.