JK begun his music journey in 1997 when he first recorded a demo at savoy hotel in Ndola with a band known as the ukwa band. In order to accomplish his childhood dream of being a musician, Jk relocated to Lusaka were the grass seemed greener. Within a short while he met rapper MC Wabwino and later featured on his (MC Wabwino) popular album Yamene Yamene album. In 1999 he joined a group called New Age where he was lead vocalist. Before long, in 2000 he left the group and decided to become a sole artist. because of his unblemished voice he was featured on a number of songs including Shatel's hit song naitopela of the Chikondi album.[4]
In 2001 Jk he released his own debut album, the self-titled [JK]. In 2002, J.K. received a Ngoma Award as well as a KORA Award nomination. He also performed in London and South Africa. Furthermore, he received great support from the public.
J.K.'s second album, the 14-track Helena, was released in 2003.[5] On one track, he performed a duet with renowned Oliver Mutukudzi, a Zimbabwean musician. This album's style varies from upbeat dance raps, ragga, to slow ballads. On No Pressure, he collaborated on one song with Hugh Masekela from South Africa.[6]
In 2010, Katembula released another album, Kapiripiri, titled after the single "Kapiripiri". It features Salma Doldia, a female Zambian artist. The album was produced by Digital X, a Lusaka-based studio. The "Kapilipili" music video received air play on MTVbase and channel-O.
In 2014 he released a song titled "Telemundo loving" which aired on channel O and all local TV stations in Zambia. Some of his music videos are available on YouTube