The up and coming rap bands were sampling James Brown's funk into their rap. The owed part of their success to The Godfather. To this day, James Brown remains the most heavily sampled artist of all in rap music.
One of the pioneers of hip hop was Kool Moe Dee. In this song from 1987, he is sampling JB's "Papa's got a brand new bag". Moe Dee had a long standing feud with the young LL Cool J back in the day and in this song he is "dissing" him for stealing his rap style.
Kool Moe Dee - How ya like me now
[radio]0rjBN3zqWI[/radio]