"Total Eclipse of the Heart" is a power ballad written, edited, composed, and produced by Jim Steinman, inspired by the classic novel, Wuthering Heights. It was originally performed by Welsh singer Bonnie Tyler in 1983. It has been covered several times, and rewritten (with Michael Kunze) for the musical Tanz der Vampire as "Totale Finsternis".
It is probably Steinman's most successful commercial composition to date and Bonnie Tyler's most successful song, going to number one on the Billboard Hot 100 in the United States and number one in Canada, Australia and the UK singles chart. At its peak, it sold 60,000 copies per day, and approximately 5-6 million copies in total, and was number one throughout (almost) the entire world charts according to Bonnie Tyler's greatest hits manual. It is therefore widely considered not just a hit, but a "smash hit".