Australian Rap group (Hip Hop duo) hailing from Canberra, ACT, Australia, consisting of DJ Danielsan and MC Hau.

Lyricist Hau Latukefu (born Langomi-e-Hau Latukefu, 1976, Queanbeyan, Australia) and producer/DJ/musician Danielsan Ichiban (born Daniel Elleson, 1975, Auckland, New Zealand) were previously together in the Canberra based group Tribe Ledda L (L for Latukefu) after Danielsan (aka DJ Rampage) had joined that group in 1992. By 1995, only Hau and Danielsan remained and they changed the name to Koolism (from a song with that name which they recorded the previous year). Their first appearance using that name is on the Homebrews Volume 1 compilation.