Welsh singer Bonnie Tyler, best known for her powerful, haunting love song "Total Eclipse of the Heart," has died aged 75 in hospital in Portugal, her family announced Thursday.

With her distinctive husky voice, tousled mane of blonde hair and black eyeliner, Tyler was instantly recognizable as the queen of the 1980s power ballad.

Her death came after her family raised hopes among fans after she came out of an induced coma in hospital in Faro in Portugal, where she had undergone emergency intestinal surgery in May.

Tyler's family announced Thursday on Facebook that they were "heartbroken to announce that Bonnie unexpectedly passed away last night in hospital in Portugal as a result of the illness that she was being treated for."

Her illness had forced the cancellation of dates on a planned European tour to mark the 50th anniversary of the release of "Lost in France," her 1976 breakthrough hit.