 Nyora kupfuurira kweiyi ndima - Bohlen akanga achiri kuchikoro paakatanga kunyora nziyo. Mukupera kwema1970, akashanda semunyori wenziyo paHamburg-based label Intersong kune vakawanda vaimbi veSchlager. Muna 1978, akatanga duo rakapfupika Monza naHolger Garbode. Dambarefu ravo rokutanga, Hallo Taxi Nummer 10, rakanyorwa uye rakagadzirwa naTony Hendrik, raiva rekodhi rokutanga raBohlen uye rakanga risina kubudirira. Monza akabudisa wechipiri wechipiri, Heiße Nacht in der City, chiGermany-mutauro wekuvhara kweNick Gilder Hot Child muGuta, iyo yakanga isina kubudirira. Muna 1980, akatanga kushanda nokuda kweBerlin-based label Hansa. Mugore iroro, achishandisa zita remadunhurirwa rokuti Steve Benson, akabudisa rwiyo rweChirungu runonzi Dont Throw My Love Away. Yakateverwa muna 1981 nedzimwe nziyo mbiri pasi pezita iroro, Rudo Runotora Nguva uye Iwe Uri Dhiyabhorosi Ne Ngirozi Blue Eyes. Hapana chimwe chazvo chakasvika pamusoro pe100, izvo zvakatungamirira kukusiyiwa kweprojekti muna 1981. Nokukurumidza pashure pacho, akabatana neboka reSvondo, raakaonekwa naro paZDF-Hitparade mukutanga kwa1982 nenziyo inoti Halé, hey Louise. Rwiyo rwacho rwakashandurwa nevanyori vakaita saRicky King. Muna 1983, Bohlen akanyora rwiyo Mit 17 kuna Bernd Clüver, iyo yakasvika panzvimbo yechitatu yeGermany kusarudzwa kweEurovision Song Contest. 