Vanity, a former protege of Prince’s and a member of Vanity 6, has died at age 57, TMZ reports.

According to the website, the singer — born Denise Katrina Matthews — had long suffered from kidney failure and recently battled abdominal illness.

Matthews died in a Fremont, California, hospital on Monday, according to TMZ. Last year the singer put up a GoFundMe page, stating that she was diagnosed with an inflammation of the small intestines called sclerosis encapsulating peritonitis.

Also Read: Prince, Purple Symbol of Musical Majesty, Dies at 57

Born in Canada, Matthews initially focused on modeling. Moving on to music, she sang lead for Vanity 6 from 1981 until 1983, during which time the group scored the hit “Nasty Girl.” Her music career also encompassed two solo albums, along with the hits “Pretty Mess” and “Under the Influence.”

In addition to music, Matthews also enjoyed a successful acting career, with roles in films “The Last Dragon,” “52 Pick-Up” and “Action Jackson.”

Matthews struggled with drug abuse, which took its toll on her health. At one point she suffered renal failure and, according to a Jet feature on the singer, required peritoneal dialysis five times a day.

Also Read: Remembering Prince: 5 of Legendary Singer's Most Memorable Performances (Videos)

Following a 1994 crack cocaine overdose that left her with near-renal failure, Matthews renounced her stage name and became a born-again Christian, at one point saying, “When I came to the Lord Jesus Christ, I threw out about 1,000 tapes of mine — every interview, every tape, every video. Everything.” Following a 1997 kidney transplant, she devoted herself to evangelism, speaking at churches.

Matthews released an autobiography, “Blame It on Vanity,” in 2010.

????????Today my friend & Sister Denise Katrina Matthews p/k/a #Vanity passed away. She absolutely loved GOD unto salvation. Rest in his Glory ???????? – MC HAMMER (@MCHammer) February 16, 2016

SADDEN my FRIEND IN CHRIST gone 2day. Vanity, Denise Matthews. MISS YOU DEARLY. U ARE IN HIS ARMS NOW, NO Pain pic.twitter.com/UbCWtl8brc — SheilaEdrummer (@SheilaEdrummer) February 16, 2016

Matthews married Los Angeles Raiders player Anthony Smith in 1995, divorcing the following year, and had been romantically involved with Motley Crue bassist Nikki Sixx.

Also Read: Prince Is Already No. 1 on iTunes, Just 45 Minutes After News of Death Breaks

Rapper MC Hammer paid tribute to Matthews via Twitter on Monday, writing, “Today my friend & Sister Denise Katrina Matthews p/k/a #Vanity passed away. She absolutely loved GOD unto salvation. Rest in his Glory.”

Musician Sheila E. also paid tribute to Matthews, tweeting, “U ARE IN HIS ARMS NOW, NO Pain.”