Best Hip Hop Song Ever!!

What makes a great Hip Hop song is the ability to bring you back in time, to make you reminisce on the "good ole' days", the days when every wannabe rapper would get in a cipher on the street corner blast music and pretend to be their favorite rapper. I think the best Hip Hop song of all time is "Luchini", my close second was "Reminisce" by Pete Rock and CL Smooth. Let me know what song you feel is the best Hip Hop song ever made and why.