Amy Winehouse has been found dead at her home in Camden Square in northern London at age 27, police confirmed to the Associated Press.
The cause of the British singer's death is not immediately known. London Ambulance Services said that Winehouse died before the two ambulance crews arrived at the scene.
"Its just beyond sad, there's nothing else to say. She was such a lost soul, may she rest in peace," fellow British singer Lily Allen wrote on Saturday.
Winehouse shot to fame with her 2006 album, "Back to Black," which earned the singer five Grammy Awards, including record and song of the year for "Rehab." The music was a combination of genres - merging soul, funk, jazz and doo-wop.
"I didn't go out looking to be famous," Winehouse told the Associated Press when "Back to Black" was released. "I'm just a musician."
Winehouse joins the notorious "27 club" of famous musicians who died at the age of 27, which includes Jim Morrison, Kurt Cobain, Jimi Hendrix, Biran Jones, and Janis Joplin.
Throughout the past few years, Winehouse appeared drunk at concerts, engaged in violent club confrontations and gradually lost weight. She was rushed to the hospital in 2007 after a drug overdose. She checked into a rehab clinic in January 2008 after the release of an online video that allegedly showed her smoking crack cocaine. Her father said later that year that Winehouse, a cigarette chain smoker, had developed the lung condition emphysema.
Winehouse was born in 1983 to taxi driver Mitch Winehouse and his pharmacist wife Janis. The singer had her eye on show business at an early age, starting her own rap group, Sweet 'n' Sour, at age 10. She attended the Sylvia Young Theatre School and later went to the Brit School, a performing arts academy.
Winehouse was originally signed to "Idol" creator Simon Fuller's 19 Management. Her 2003 debut album "Frank" was critically acclaimed and sold well in Britain. But following the release of her first album, Winehouse entered a slump, where she broke up with her boyfriend, endured a long period of writer's block and smoked a lot of marijuana.
"I had writer's block for so long," she said in 2007. "And as a writer, your self-worth is literally based on the last thing you wrote.... At one point it had been two years since the last record and (the record company) actually said to me, 'Do you even want to make another record?' I was like, 'I swear it's coming.'"
The success of "Back to Black" put the beehive-wearing singer in the spotlight and she became a paparazzi target. Winehouse was open about her personal struggles, she talked about her eating disorders and manic depression, for which she refused to take medication. Her erratic behavior and unsteady appearance at concerts did not go unnoticed.
There were also embarrassing videos released to the internet which showed the singer with Babyshambles singer Pete Doherty, playing with newborn mice and another of her singing a racist tune, which she later apologized for.
Winehouse married Blake Fielder-Civil in May 2007, but later that year, he was arrested for attacking a pub manager a year before. The singer tried to stand by Fielder-Civil while he was behind bars, but they divorced in 2009.
Winehouse was reportedly working on new material and released a few recordings since her 2006 album, including a rendition of The Zuton's "Valerie," which appeared on producer Mark Ronson's 2007 album "Version." She also recorded "It's My Party" for Quincy Jones' 2010 album, "Q: Soul Bossa Nostra."
Her managers tried to get the troubled singer to follow through with her various rehab stints and during the first stop of her 2011 European tour, stripped her hotel of booze, but the singer still slurred and swayed through the performance and canceled the rest of her European summer concert tour after getting booed off stage during her performance in Serbia on June 18.
The singer also canceled all public performances. Her spokesperson told the wire service that Winehouse "is withdrawing from all scheduled performances" to focus on recovering.
Winehouse left rehab earlier last month for alcohol addiction, a week after checking herself in.