Beyonce and Kelly Rowland enjoyed Janet Jackson’s show. Beyonce and Kelly Rowland were the latest to show up in Vegas for Janet Jackson’s iconic residency, Metamorphosis At Park Theatre. The duo joined the thousands of fans who came to watch Janet perform at a show which shortly followed the 53-year-old singer’s birthday celebrations. A snippet of Jackson’s first performance when she kick-started the tour further teased the magnitude of the experience …