Roots of Hip Hop? Louis Armstrong's "Ol' Man Mose" from 1935

From 1935: The first to piano loops sound like a sample waiting to be rapped over. The rhythm pulses underneath like most dance tunes. After his horn intro, he goes into telling a story using rhyme, ala Slick Rick... After the 2 call and responses, the repetitious "Moe's kicked the Bucket" line sounds like a hook, or a vocal sample used commonly in Dance/House tunes where repetition is King... think about it and enjoy. I"m totally going to drop this in a set!!!

The embed has been giving me trouble, just in case, listen here... http://www.youtube.com/watch?v=95zqe-Qz-SM