Final answer:
The main subject of Jean-Michel Basquiat's 'Horn Players' is the homage to jazz legends, saxophonist Charlie Parker and trumpeter Dizzy Gillespie.
Step-by-step explanation:
The main subject of Jean-Michel Basquiat's artwork 'Horn Players' is the representation of saxophonist Charlie Parker and trumpeter Dizzy Gillespie. Basquiat's work often revolves around themes that honor the Black experience, its historical roots in slavery and colonialism, and figures in Black culture. In this particular painting, he pays homage to two iconic and influential jazz musicians. Basquiat used symbols and diagrams, along with deep gestural brushstrokes, to build multiple meanings into the painting, often incorporating a three-peaked crown motif to celebrate Black male figures revered as poets, musicians, and athletes.