Block Out were formed in Belgrade, Serbia at the end of 1990 by singer Milutin Jovančić - Mita. The band originally started as Ad Hoc, but due to the existence of another band under the same name, they were forced to change their name. The band chose the name from a very popular computer game at that time, Block Out. During 1991 some members left Block Out and moved to live in Holland. Nikola Vranjković joined as a new guitarist, and soon became the central creative core of the band.