Les Wanyika was a prominent band with Kenyan and Tanzanian members and was based in Kenya. It was formed in 1978 when guitarist Omar Shabani, bassist Tom Malanga and two other members left Simba Wanyika. They were joined by John Ngereza and Issa Juma. Les Wanyika made many popular recordings, but are best remembered for their 1979 classic Sina Makosa and Paulina. Vocalist Issa Juma left the band soon afterwards to concentrate on other musical projects. The group continued until Omar Shabani's death in 1998. John Ngereza died two years later. In 1971, two brothers from the coastal region of Tanga, Tanzania, Wilson and George Kinyonga formed a band they would call Simba Wanyika, Swahili for Savannah Lions. Due to unsteady economic conditions in Tanzania in the 70s which strained the music industry, most of the artists of that time migrated to Kenya and other neighbouring countries in search of greener environments. It's no wonder that some of these artists became citizens of those countries.

During that time, travelling between the two countries was made easy by the East African Community, a tripartite agreement of understanding among Kenya, Uganda and Tanzania. After the collapse of the community in 1977, border crossings were made difficult, hence the eventual establishment of permanent base in Kenya by the group. With its development and growth, the band created several offshoots, but most notable was Les Wanyika.