Björn Immerzeel has been working in the dance industry since the mid-nineties. At the time, he started as a DJ (Bjorn Know-how). Later on he also became co-owner of record label Once Records. With his event agency Bubblegum Productions, Björn organised smaller festivals and events until 2010. Early 2015 he started as an International Account Manager Festivals & Venues at Alpine Hearing Protection, in which he is responsible for the availability of hearing protection at festivals and music venues. As a certified otometrist he can also provide artists and the staff of festival organizations, music venues and agencies with Alpine’s custom made hearing protection.