Michael Schanze

9 episodes

Mireille Mathieu

3 episodes

Udo Jürgens

3 episodes

Howard Carpendale

2 episodes

Peter Maffay

2 episodes

Precious Wilson

2 episodes

Michael Holm

2 episodes

Lena Valaitis

2 episodes

Roland Kaiser

2 episodes

Tony Christie

1 episode

James Last

1 episode

Ireen Sheer

1 episode

Bernhard Brink

1 episode

Gérard Lenorman

1 episode

Irene Cara

1 episode

Agnetha Fältskog

1 episode

Björn Ulvaeus

1 episode

Benny Andersson

1 episode

Anni-Frid Lyngstad

1 episode

Costa Cordalis

1 episode

Heino

1 episode

Richard Clayderman

1 episode

Engelbert Humperdinck

1 episode

Karel Gott

1 episode

Wolfgang Heichel

1 episode

Henriette Strobel

1 episode

Edina Pop

1 episode

Steve Bender

1 episode

Leslie Mandoki

1 episode

Milva

1 episode

Volker Lechtenbrink

1 episode

Liz Mitchell

1 episode

Marcia Barrett

1 episode

Maizie Williams

1 episode

Bobby Farrell

1 episode

Nana Mouskouri

1 episode

Thomas Ohrner

1 episode

Veronika Fischer

1 episode

Julio Iglesias

1 episode

Roger Whittaker

1 episode

Ricky King

1 episode

Mary Roos

1 episode

Hanne Haller

1 episode

Hubert Kah

1 episode

Gitte Hænning

1 episode

Christian Franke

1 episode

Katja Ebstein

1 episode

Chris De Burgh

1 episode