Blue System was a German pop group that was founded by Dieter Bohlen in 1987^[1] after the break-up of Modern Talking.

The group consisted of Dieter Bohlen (mastermind creator, composer, writer, producer, mixer, arranger and verse main vocals), and hired backstage musicians Rolf Köhler (chorus main vocals), Michael Scholz (background vocals), Detlef Wiedeke (background vocals) and other background and/or front female voices Tuti Kanta ("Laila", "Only with You"), Marion Schwaiger ("Déjà vu", etc.), Audrey Mountang and Madeleine Lang ^{[citation needed]}.

On stage: Joachim Vogel (rhythm guitar), Jeanne Dupuy and Frank Otto (drums), Nadja Abd el Farrag (vocals).^{[clarification needed]} In 1988 Frank Otto was replaced by Michel Rollin. After that in 1991 a new keyboardist joined for live shows – Achim Strieben. In TV shows and videos he was replaced by Friedrich Graner (Sir Fritz), who remained a part of the group until the break-up in 1998. In 1992 Dirk Sauer, Rene Engelman and Wolfgang Fritsch joined the group, while Joachim Vogel left.

Some of the group's singles such as "Sorry Little Sarah" or "My Bed Is Too Big" achieved moderate success in Europe. The group released 22 video clips from their album repertoire and most of these were aired in Europe, especially on German TV shows. Blue System also had several concert performances in Russia^{[citation needed]} during the late 80s and early 90s.

• Dieter Bohlen – lead vocals, guitar, keyboards (1987–1998)
• Frank Otto – drums (1987–1989)
• Joachim Vogel – rhythm guitar (1987–1990)
• Husnu Baylav (Snoopy) – drums (1989)
• Michel Rollin – drums (1989–1998)
• Joachim Strieben – keyboards (1989–1998)
• Lutz Krüger – vocals (1990–1991)
• Wolfgang Fritsch – rhythm guitar (1990–1996)
• Fritz Graner – keyboards (1991–1998)
• Dirk Sauer – vocals (1992–1994)
• Thorsten Feller – vocals (1994–1996)
• Lars Illmer – vocals (1997–1998)

Timeline

• Modern Talking
• Euro disco
• Systems in Blue