The first time I heard Living Proof I immediately thought of James Brown but couldn't figure out what song exactly. On my way to school this morning I heard Lyrics of fury with Rakim and it had the exact same sample (the drums) so I went home and searched for it. Thought I'd share, here it is:
Living proof:
http://www.youtube.com/watch?v=DSSNgDCReT4
Rakim - Lyrics of fury:
http://www.youtube.com/watch?v=GFOeJOtq_xc
James Brown - Funky drummer (5:35):
http://www.youtube.com/watch?v=dNP8tbDM ... _embedded#!
Genius Mr. Porter beat!