As a foreign band, the group began to pick up Zimbabwean influences, mainly through new Shona members. During the 1960s, OK Success played two of Harare's top nightclubs, alternating with fellow Congolese compatriots (and former Jonah Sithole band) the Limpopo Jazz Band. OK Success produced substantial domestic hits, including Sekuru, Amai, and Baba VaBhoyi Maita Seyi, and Kutamba Mwako Kwamyanya in the 60s.

During the 1970s OK Success began to recruit Zimbabwean members. Their highest profile acquisition proved to be Thomas Mapfumo's Acid Band alumni James Chimombe, who lead the group to stardom. The height of their popularity spanned the late 70s and early 80s. Alas, continued success was not to be, as Chimombe's move to the Huchi Band began the band's decline into mid-80s obscurity. The group has also been led by the late singer Susan Mapfumo.