Kuching, Monday–YK Samarinda is an ethnic jazz band from East Kalimantan who started out as a fusion jazz band and eventually made and combined ethnic songs of Kalimantan in jazz rhythm.
The YK Band is a quartet from Samarinda whose music is an unique blend of Indonesian Borneo tunes built into western jazz techniques and improvisation. Yusuf and King formed the band in 2003 when they established some projects of ethnic songs. In 2005, the keyboardist and studio arranger Yin joined the group and later on Thrash Metal drummer Avant joined, which resulted in the group growing bigger.
In 2013, Avant decided to go for a solo career, and M. Iqbal came to join the YK band. Since then the band has found more groove and has showed impressive performances at the Java Jazz festival in Jakarta and the Mahakam Jazz Fiesta in Samarinda.