Amy Winehouse, the once-successful and often-troubled singer, has been found dead in her London home, the Daily Mail reports. According to reports, the cause of the 27-year-old's death was a drug overdose and she was found dead when paramedics arrived, though it's unclear who called them. RadarOnline reports that an autopsy will take place Sunday or Monday.

Winehouse had appeared earlier this week at her goddaughter Dionne Bromfield's performance at London's Roundhouse. Though she didn't sing, she danced onstage and told the surprised concertgoers to buy the 15-year-old singer's album.

In May, the singer checked into rehab to treat her ongoing substance-abuse problems just before she was set to go on a comeback tour of Europe. In June, she had a disastrous gig in Belgrade, during which she appeared to be heavily under the influence, slurring her words and repeatedly walking offstage. After initially canceling the subsequent two shows, the entire tour was scrapped.

Earlier this year, her father Mitch Winehouse told our sister site Spinner, "She's doing better now. She has been clean for two and a half years, about that. I'm not saying her problems have gone away, because they haven't. She's dealing with it."

Winehouse rocketed to international fame on the strength of her 2006 album 'Back to Black' and its singles 'Rehab' and 'You Know I'm No Good.' At the 2008 Grammys, she won five awards, including Record of the Year, Song of the Year and Best Female Pop Vocal Performance for 'Rehab,' Best Pop Vocal Album and Best New Artist.

Sadly, the fame only seemed to compound her already-present battles with substance abuse, eating disorders and depression. She was hospitalized multiple times for alcohol and drug use, which allegedly included crack cocaine, heroin, ecstasy and prescription pills, and was often featured in the tabloids looking disheveled and incoherent. Despite several stints in rehab, she seemingly was never able to kick her habit.

"We are deeply saddened at the sudden loss of such a gifted musician, artist and performer. Our prayers go out to Amy's family, friends and fans at this difficult time," Universal Republic heads Monte and Avery Lipman said in a statement to

Amy Winehouse Performs 'Rehab' on the Interface

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