Final answer:
John Philip Sousa was a famous American composer known as "the march king" for his patriotic marches.
Step-by-step explanation:
John Philip Sousa was a famous American composer known as "the march king." He earned this title for his marches that inspire patriotism. Sousa specialized in creating stirring marches for military bands, with one of his most beloved patriotic songs being "Stars and Stripes Forever."