Vanity (born Denise Katrina Matthews; January 4, 1959), and sometimes credited as Denise Matthews-Smith and D.D. Winters, is a Canadian former singer, songwriter, dancer, actress, and model. Vanity's career lasted from the 1980s until the early mid-'90s. She was the lead singer of the female trio Vanity 6 from 1981 until it disbanded in 1983. The group was well known for their 1982 R&B/Funk hit "Nasty Girl".