Ambulance crews found troubled singer-songwriter Amy Winehouse dead in her north London home on Saturday.
The cause of death was not immediately known and would not be announced before Monday after an autopsy, police said in a statement.
Fans gathered outside her home on Sunday, placing flowers and scribbling notes on the sidewalk.
Like Janis Joplin, Jimi Hendrix and Jim Morrison and other entertainers whose lives were destroyed substance abuse, the 27-year-old recipient of five Grammy awards had been struggling with alcohol and drug addition for years.
In the past few years, bouts of depression, eating disorders and substance abuse took their toll on Winehouse's career. Just a few weeks ago, her management cancelled a European comeback tour after she appeared on stage in Belgrade too drunk to perform.
Her struggles with drugs, alcohol and self-destructive behavior brought confrontations with police and often made the tabloids.
But fans say her legacy will be her music. Her album, "Back to Black," won five Grammys, sold five million copies and paved the way to an extraordinary career, but her performances deteriorated as she succumbed to the ravages of drugs and alcohol.
Her spokesman Chris Goodman said, "everyone who was involved with Amy is shocked and devastated."