Jaap grew up in Terwolde as youngest son in a family with five children. His father, Siewertsz of Reesema, is rheumatism, and his mother is also doctor. Reesema was student rights on the Erasmus University Rotterdam and short student of mediums and culture to the university of Amsterdam. He was until recently the front man of Hermes House Band, the occasion link of the Rotterdamsch students Corps. In 2009, he participated to the talentenbattle in Carlo & Irene: Life4You.

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