Where can I get the jacket from the "Beat It" music video!?

I loved that video and that jacket.  After Michael died, I found a whole slew of costumes that make you look just like Michael, including his Beat It outfit.  Now this jacket is officially licensed as a Michael Jackson costum.  It is available in medium and large adult sizes. 

http://www.hellocosplay.com/michael-jackson-beat-it-red-zipper-jacket-costume-p-806.html
This jacket looks just like the one Michael wore in beat it.  It is not offically licensed.  It is fan made out of pleather and tons of zippers.  A great tribute to Michael.

And the last one is a different color padding style than the first costume.  Beat!  as it is called is red and gold.  This jacket looks very similar to the one Michael wore in Beat It. 

I hope these help you out.  Thank you so much for your question.