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1974 Roll Along  [CNR records]

1975 Get On Board  [CNR]

1977 See the Sun  [Negram]

1979 Teach In (Greenpeace)  [CNR]

1971  "Spoke the Lord Creator (Chorale St. Anthony's)" b/w "Darkness of Life"  [CBS]

1971  "Can't Be So Bad" b/w "Take me to the Water"  [CBS]

1972  "So Easy to Sing (Cord di Schiavi Ebrei)" b/w "My Name is Honey"  [CBS]

1974  "Fly Away" b/w "Bye Bye Bye"  [CNR; Metronome in Germany; Philips in the UK]

1974  "In the Summernight" b/w "Old Friend Goodbye"  [CNR; Metronome in Germany; Polydor in the UK]

1974  "Tennessee Town" b/w "There Ain't No Time"  [CNR]

1975  "Dinge-Dong" (Nederlandse) b/w "Ik Heb Geen Geld Voor de Trein"  [CNR]

1975  "Ding-a-Dong" (Deutsche) b/w "Hey-Hello"  (Germany only release)  [Telefunken]

1975  "Ding-a-Dong" b/w "The Circus Show"  [CNR]

1975  "Ding-a-Dong" b/w "Let me In" (re-issue to commemorate winning Eurovision '75)  [Philips; Telefunken in Germany; Vogue in France; Polydor in the UK & USA]

1975  "Goodbye Love" b/w "Sailor Man"  [CNR; Telefunken in Germany]

1975  "Rose Valley" b/w "La La Love Song"  [CNR; Telefunken in Germany]

1976  "Upside Down" b/w "Please Come Home"  [Negram; EMI in the UK & Germany]

1977  "A Ride in the Night" b/w "Wonderful Feeling"  [Negram International; EMI in Germany]

1977  "See the Sun" b/w "All Around"  [Negram International; EMI in Germany]

1977  "(Do You Wanna Play) My Rock and Roll Song" b/w "Our Story"  [Negram International; EMI in Germany]

1978  "Dear John" b/w "Instrumental John"  [CNR; Carrere in France & the UK]

1979  "The Robot" b/w "Well Comeback"  [CNR; Carrere in France]

1979  "Greenpeace" (English version) b/w "Greenpeace" (Nederlandse versie)  [CNR]

1980  "Regrets" b/w "Things We Say"  [CBS]

1980  "Bad Day" b/w "I Wish You All the Luck"  [CBS]