Lars Jacob Jack Vreeswijk, born on January 25, 1964, in Stockholm, was a Swedish ballad singer, songwriter, and composer. Following in his father Cornelis Vreeswijk's footsteps, he released four albums of his own, often performing his father’s songs. In summer 2006, Jack Vreeswijk appeared in a biographical musical show about his father titled Från James Dean till Nationalskald, which he also wrote and starred in as the older Cornelis. He composed music for a film about Cornelis Vreeswijk's life and produced nine tracks on Hans-Erik Dyvik Husby’s album I ljuset av Cornelis. In 2012, Jack Vreeswijk released his first solo album, Is I Magen, in 1996, followed by Underbart in 2004. He also received the Cornelis Vreeswijk scholarship in 2000 and the Fred Åkerström scholarship in 2008. Lars Jacob Jack Vreeswijk passed away from cancer in April 2023, at the age of 59.