Herbie writes all this incredible iconic jazz music, then makes all his money with this silly simple tune with strange imagery and a dance beat. Total genius.
Fun fact: No electricity was used to obtain these effects. All devices were animated solely through the unholy power of Herbie's fresh beats. Unfortunately, his own creations ultimately turned against him; bringing an untimely end to a promising career. Let this be a lesson to all who would tamper in God's domain.