If you ever get bored, you might wanna listen and look to this dj on you tube.

I have been watching most of his vids about hip hop samples.

He tells were the hip hop artist got the sample from.

I just found out there is another series too.

Cover Song or Original Version? ~ No Freakin Way! (Part 1)
there are atleast 8 parts.
https://www.youtube.com/watch?v=O3CoWvnbZXw

Hip hop samples:
Even if you don't like hip hop, you still might wanna listen and find out about some great funk songs and more music like that.
This is not ice cube.... its the isley brothers and so on.
There are over 50 vids about hip hop samples.