http://www.msn.com/en-us/music/news...nity-6-dies-at-57/ar-BBpxKoz?ocid=ansmsnent11 Prince's protege has passed away. Denise Katrina Matthews, who was commonly known as Vanity from the '80s group Vanity 6, died at the age of 57 on Feb. 15, 2016, after battling kidney failure. A few months ago, a GoFundMe page was set up for her as she'd been diagnosed with sclerosing encapsulating peritonitis. Vanity's biggest hit was "Nasty Girl" in 1982, a song produced by Prince. He was the one to rename her "Vanity," because he said that he saw his female reflection when he looked at her. Vanity 6 toured with Prince until they disbanded in 1983, and after that, Vanity signed a solo record deal with Motown.