Sandra Ann Lauer, later Sandra Cretu, commonly known mononymously as Sandra, is a German pop singer who enjoyed mainstream popularity in the 1980s and early 1990s with a string of European hit singles, produced by her then-husband and musical partner, Michael Cretu, most notably " Maria Magdalena", "In the Heat of the Night", "Everlasting Love", "Secret Land", "Hiroshima", and "Don't Be Aggressive". Wikipedia