Blue System was a German pop-group that was founded by Dieter Bohlen in 1987 after the break-up of Modern Talking. The group consisted of Dieter Bohlen (composer, producer, vocals), Rolf Köhler (vocals), Michael Scholz (backingvocals), Detlef Wiedeke (backingvocals).
On stage: Joachim Vogel (rhythm-guitar), Jeanne Dupuy and Frank Otto (drums). In 1988 Frank Otto was replaced by Michel Rollin. After that in 1991 a new keyboardist joined - Achim Striben. In 1992 Dirk Sauer, Rene Engelman and Fritsch Wolfgang joined the group, while Joachim Vogel left.
Some of the group's singles such as "Sorry Little Sarah" and "Magic Symphony" were very popular and entered German dance charts. The group released a lot of video clips of their songs, which were shown on major German TV channels. Blue System also gave a lot of concerts in Germany and outside (in Russia).