1. Denise Katrina Matthews (born January 4, 1959), better known as Vanity but sometimes credited as Denise Matthews-Smith or D.D. Winters, is a Canadian-born singer, songwriter, dancer, actress, model, and full-time preacher. She was the lead singer for the Prince-mentored female trio Vanity 6, which recorded the 1982 R&B hit "Nasty Girl". Matthews formally gave up her stage name "Vanity" and became a born-again Christian in 1994, the year she almost died from the effects of snorting cocaine.