"Say Hey" is a hard-swinging original by Branford Marsalis from the 1990 soundtrack album Music from Mo' Better Blues. Set as a 12-bar blues in F at a blazing 270 bpm, the tune provides a showcase for the kind of virtuosic bebop playing that lies at the heart of Spike Lee's film about jazz culture. Trumpeter Terence Blanchard, who performed the on-screen trumpet parts for the film's lead character, opens with five fiery choruses that demonstrate his formidable technique and deep blues feeling. Marsalis follows with eight commanding choruses on tenor saxophone, his extended solo building in intensity as he explores the blues form with harmonic adventurousness and rhythmic sophistication. The blazing tempo and blues form connect this performance to the bebop tradition of Charlie Parker and Dizzy Gillespie, while the energy and confidence of the playing reflect the youthful vitality of Marsalis and Blanchard, both still in their twenties at the time of recording. The track captures the competitive spirit of the jazz jam session, where musicians push each other to greater heights of invention, a dynamic central to the film's dramatic storyline.