British singer Amy Winehouse was has been found dead at her flat in north London.
Police said her death, which was announced on July 23, is being treated as unexplained.
The 27-year-old soul singer had fought a long battle against alcohol and drug addiction.
Winehouse recently canceled a planned tour following a disastrous performance
Reacting to the death, American singing star Tony Bennett, who recorded a song with Winehouse, called her an "artist of immense proportions" and said he was deeply saddened to learn of her "tragic passing."
The U.S.-based Recording Academy, which gives out the Grammys, the music industry's highest honor, called Winehouse "a dynamic performer and musician who seamlessly blended rock, jazz, pop, and soul and created a sound all her own."
Winehouse won five Grammys, including Best New Artist and Record Of The Year, in connection with her album "Back To Black."
With her death, Winehouse joins the group of famous rock stars who died at the age of 27.
The notorious "27 Club" includes Rolling Stones founding member Brian Jones, guitarist Jimi Hendrix, singer Janis Joplin, The Doors singer Jim Morrison, and Nirvana frontman Kurt Cobain.
compiled from agency reports