Frederik IX, the King of Denmark, was not just a monarch but also a passionate advocate for music, particularly the vibrant and energetic genre of big band. His love for this lively music style was well-known, and he often supported and promoted big band performances and artists. Frederik IX's enthusiasm for big band music was infectious, and he played a significant role in popularizing this genre in Denmark. His support for the arts and music left a lasting impact, making him a beloved figure not only as a king but also as a patron of the arts.