The multi-talented Vignesh ShivN is celebrating his birthday today. Taking time off their demanding work life, Vikky and Nayanthara are celebrating the day in New York. The duo has always praised each other in many events and has made appearances as a couple too. In fact, Vignesh changed his name from Vignesh Shivan to Vignesh ShivN for N is so important to him. For Lady superstar Nayanthara, stardom maybe for the world, but her world is Vikky!