Music knows no boundaries, and CLS&WAX are a living example of this. They combined their experience with knowledge: as a DJ, Wax knows what thrills people, and CLS knows how to achieve such an effect. The result of this collaboration is the debut of "Why don't you" in 2004 on the compilation "Weapons of Mass Creation," released by "Hospital rec." - one of the most prolific drum'n'bass music publishing houses in the UK. They were the first Polish artists of drum'n'bass music to make their presence felt in the British Isles. Their tracks have been played on BBC Radio One on Fabio and Grooverider's broadcasts and DJ Flight on BBC 1Xtra, and such figures as LTJ Bukem, High Contrast, Marky, The Insiders, London Elektricity have included their productions in their DJ sets around the world.