Greates of all time hip hop songs ?

I am getting my husband a new mp3 for his b-day. i would like to have songs loaded already. we are hip-hop fans in late 20's early 30's. We are partial to old school of course, no lil' wayne. I was just on vh1 top 100 hip hop and got a lot but would like more. Maybe someone can help with those random tracks we forget. we listen to more west coast from back in the day than east coast but so like some east coast. My husband is a big e-40 fan TRU, Master p. and ice cube, eazy, dre, trick daddy,pac, plus like new edition bobby brown, michael jackson BONE , just to give you an idea of his style. He did grow up on motown as well so any good songs from that genre too would help.