Isgaard Marke (born 1972 in Husum, Schleswig-Holstein, Germany) is a classically trained singer, who is also involved with the project Classic meets Pop. Her style resembles influences of the Kate Bush school as well as cold wave influences and modern ambient sounds. Her greatest hits were "Ein schöner Tag" and "Dream of You" with the dance project Schiller, in which she sang single, short lyrical lines.

In 2003, she participated in the German pre-selection for the Eurovision Song Contest and reached seventh place with the song "Golden Key". Her album of the same name achieved moderate success in Germany and reached the Top 10 in the Philippines. The album was released in more than 15 countries and contained the song "Dreams Will Never Die", a duet with Piero Mazzochetti. Videos were made for the songs "Earth Song" (originally by Michael Jackson) and "Dreams Will Never Die", the latter of which was occasionally broadcast on MTV.