^ its not like EPMD's pussy pt.7, 8, 9 etc..
technically they had to give 'em a numeric order for copyrighting songs with similiar names and shit, weither the concept of the songs is different or not, or they appear with different titles when released these are other matters.
you cant be the one who labels one thing something in conformity to apply it for everybody to see. but you can call a song it in vision of your preferences and let others do the way they want to. historically Street Fame been called part II by bootleggers and thats way before the song been officially released; some people still likes to call it that way. thats all!