This might be the greatest mashup in the history of the world. Thank You DJ Cummerbund.

What do you get when you take Earth Wind and Fire's, 'September' and mash it up with Ozzy's, 'Crazy Train?' You get the best mashup video your eyes have ever seen.

Just watch it, it's amazing and it'll probably make your day!

DJ Cummerbund. Genius.

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