Bonnie Tyler died unexpectedly at 75 in a Portugal hospital, her family said, after treatment for an illness linked to emergency intestinal surgery in Faro in May.
The Welsh singer was later placed in an induced coma; her family said she died Wednesday night while still being treated.
"Total Eclipse of the Heart" defined her career — the 1983 hit spent 4 weeks at No. 1, has more than 1 billion streams and its video has topped 1 billion views.
Tyler, born Gaynor Hopkins, earned 3 Grammy nominations, represented Britain at Eurovision in 2013 and received an MBE in 2023 after a career spanning nearly 50 years.