Here's Usher mocking a goat. Or a goat mocking Usher.
Or a wonderful duet that mocks both of them.
Not only is funny, it's an example of an easy way to make your own mashups.
Click to make your mashup easier.
The goat starts first...
(moved after the jump as it obnoxiously autoplays)
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I can't get enough of this. I need to go grab some depends cuz I'm pissing my pants laughing.