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Vanity, singer and protégée of Prince, died Monday at a hospital in Fremont, Calif., after battling kidney failure and a stomach illness, TMZ reports. She was 57.

Born Denise Katrina Matthews, Vanity was the lead singer of the 1980s group Vanity 6, known for songs including the 1982 hit "Nasty Girl," which was produced by Prince. After the group broke up in 1983, Vanity embarked on a solo career and released songs including "Pretty Mess" and "Mechanical Emotion."

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Vanity, who battled crack addiction in the 1990s and suffered an overdose in 1994, had recently set up a GoFundMe page to finance her treatment for inflammation of the small intestine.

After giving up drugs, Vanity became a born-again Christian and was an active member of her church up until her death.