oh my god. what is wrong with you people? "50 def heard it from pac... blah blah" what are you on crack? pac and the bootcamp clik got it from ice cube's "bop gun". that's where 50 got it from, that's where he heard it. what are the odds, you think, that 50 havent heard an already released ice cube track (which is a classic track at that) but he does have an unreleased tupac track in shitty quality? no one except the hardcore fans have his unreleased shit. i know several members of this forum (!) who visit life (!!!) who don't have his every unreleased track. lot don't even have the tracks on their computer, but on an old cd-r they never use. groooouuupiiiieee-luuuuuv indeed. i'm sure pac will unzip his pants for some of you to gobble dick if that's what you want lol.
oh and i think this kind of thing qualifies more as an interpolation.