Josef was born on 4 October 1995 in Prague to a musical family. He is of Czech, Moravian, Austrian, German and Italian descent. He was raised in a village in central Bohemia. His parents used to be English teachers and he graduated from the English College in Prague. He has a brother named Karel and an older half-sister called Martina and has been playing guitar since he was five years old. He grew up in Znojmo and in Kamenice (Prague-East District) a small village in central Bohemia.[1] He first began making folk records moving on to hip hop, house and pop music influenced by folk music, creating a unique combination and style. At age 17, Mikolas began modeling professionally and took part in fashion shows for clothing brands such as Diesel (brand) and Prada.