In 1977, Koelewijn released his debut solo album "Het Beste in Mij Is Niet Goed Genoeg Voor Jou" ("The Best I Can Give Is Still Unworthy Of You") which spawned two singles; the Rockets-like "Je Wordt Ouder Papa" (""You're Growing Older Papa""; a jocular comment by Golden Earring guitarist George Kooymans) and "KL 204 (Als Ik God Was)", originally intended as the lead single and reissued in 1990. Engelbert Humperdinck recorded the English version "The Road To Nowhere", although Koelewijn had done likewise at the start. "Flight 204" was released in 2019 on the bilingual album-reissue.