Nederlandse vinylsingles

Harmony

Trio Donald Lieveld (ex-Liberation of Man), Rosina Lauwaars en Ab van Woudenberg (beiden ex-Sommerset).

1978
- 't Is O.K. / Bim bam bom
(Polydor 2050 509)
- It's O.K. / Bim bam bom
(Polydor 2050 510)
- And I love you / Doctor
(Polydor 2050 529)

1980
- Caravan / Love me 
(Polydor 2050 590) [A: Rosina / B: Rosina & Harmony]