Rapper MC Hammer will file papers in City Hall soon to change his name back to his birth name, Master of Ceremonies Hammer. His mother, who also went through a long period of her life with an acronym for a name, (HP Hammer) had this to say. “I got tired of it, Master of Ceremonies is tired of it. Always getting asked, “What does that mean…what’s it stand for? People thought I was plugging Hewlett Packard for freaks sakes. My initials stand for human pamplona.” MC’s father, Arm & was not available for comment.