WTF is wrong with you 50 d!ck riders...
Jay-Z put Alicia Keys on Empire State of Mind... Alicia Keys' version is called Pt. 2 and was released over a month later with different drums, strings, etc. same thing with Eminem's "Love The Way You Lie"
Empire State Of Mind was composed and written by a British dude and a American singer who live over in Britain. They sold the song to Jayz and Alicia Keys re-sung the vocals which were already laid down by the original writers
Jayz dropped some verses, which were nothing special, that song had a dope beat and a fire hook, it was a hit, Jay verses were not memorable, people only no the words to the hook.