One of the best ways, in my opinion, to appreciate hip-hop as a genre is to listen to it in another language. By sacrificing the lyrical content, you can get a much better feel for the sound of the vocals themselves. You can get a hang of both the tone and style of the lyrics, without knowing a word of them. The rhymes and repetitions get interesting as well, as they still ring out, but this time without a lick of context. Coincidentally, you can replicate how I felt listening to any and all music in America at age 6, before I picked up on the language.
Here is Germany's Deichkind with “Limit”:
And here is Jack Parow from South Africa with “Dans Dans Dans”:
Finally, France's Syrano with “Matt l'automate”: