Rihanna stepped out to celebrate the birthday of her hairstylist Ursula Stephen at nightclub Boudoir at 19th and Broadway on Thursday night. The singer, who had performed at the Victoria’s Secret fashion show Wednesday at the Lexington Armory, came with 10 friends to the party, where they were seen dancing all night in a VIP section while DJ Kiss spun tunes. Also there were actress Taraji P. Henson and reality star Toccara Jones toasting Stephen, a brand ambassador for Motions.