She began her career as the lead singer of trio Arabesque from 1979 and started performing solo in 1984. Numerous Sandra's albums & singles ("Maria Magdalena", "In The Heat Of The Night", "Everlasting Love" among others) hit the top-10 charts.
Sandra can be heard on the numerous albums and singles of Enigma, a project directed by Michael Cretu. She was married to him from 1988 to 2008. They became parents of twins on July 6th 1995: Nikita and Sebastian.
From 2010 until 2014 she was married with Olaf Menges.