Eric B. and Rakim, "I Know You Got Soul" (1987)
For all of their guard-at-the-gate-ness for the classic period of hip-hop, you were either team James Brown (mostly East Coast) or team P-Funk (mostly West Coast). Rarely did you ever hear the two worlds colliding in hip-hop's musical backdrop. How fitting is it that two side projects from these camps – the drum foundation is Funkadelic, the guitar loop from James' right-hand man, Bobby Byrd – formed a union so threatening it forced Public Enemy's Chuck D to create my number one pick on this list in a knee jerk response to him getting a mid-life crisis moment when he first heard this song. "I Know You Got Soul" solidified Rakim's status as the second coming. Only his third 12-inch single, and already he was declared the king of kings. Hard to imagine a time when the most intelligent MC ruled the kingdom of hip-hop. I wish those days could come back once more.