As "alter-ego" J. Walter Negro (a cynical take-off on the arch-commercialist J. Walter Thompson advertising agency), he is remembered as the lead singer/songwriter of the proto-hip-hop-rap group 'J. Walter Negro and the Loose Jointz', who had some success with their 1981 release "Shoot the Pump".
The reference describes a musician, J. Walter Negro, known for his alter ego and his role as the lead singer/songwriter of a proto-hip-hop-rap group called 'J. Walter Negro and the Loose Jointz', who achieved some success with their 1981 single "Shoot the Pump".