Soul singer Amy Winehouse, who died unexpectedly at age 27, received numerous tributes on Saturday from ordinary fans around the world and music luminaries ranging from Tony Bennett to producer Mark Ronson.

The 'Rehab' singer whose problems with substance abuse were well-documented, died at her home in London, and while it appears she has lost her battle with drink and drugs, an official cause of death has yet to be determined.

Nevertheless, fans speculated that she became another in a long list of singers, actors and other celebrities whose problems in the public limelight led to their demise -- Kurt Cobain, Janis Joplin, Jimi Hendrix, Heath Ledger.

 The British singers' talent was discovered when she was 16, and her debut album 'Frank' in 2003 earned acclaim. But it was her second CD, 2006's 'Back to Black' that made her a star.

The record produced a string of memorable tunes, including 'You Know I'm No Good,' 'Love Is a Losing Game' and 'Rehab,' which contained the line: 'They tried to make me go to rehab. I said 'no, no, no.'' The album reached reached No. 1 in Britain and earned Winehouse five Grammys, pop music's highest honors.

Ronson, the 'Back to Black' producer, tweeted that Winehouse 'was my musical soulmate & like a sister to me. this is one of the saddest days of my life.'    

Indeed, Twitter was alive with tributes from a who's who of the music world. Rapper and media mogul Diddy said 'RIP Amy Winehouse' on the social network website and rocker Pete Wentz sent out 'super sad to hear about the news. RIP. never take life for granted.'    

Music legend Tony Bennett, who recorded the classic pop standard 'Body And Soul' with Winehouse last March, issued a statement calling her 'an artist of immense proportions.

'I am deeply saddened to learn of her tragic passing. She was an extraordinary musician with a rare intuition as a vocalist and I am truly devastated that her exceptional talent has come to such an early end,' Bennett said.  - Reuters