Shia Labeouf shows of his ....natural (and scruffy) side as he bares it all for a music video.

TMZ caught wind of Shia Labeouf baring it all for an Icelandic band's new music video. Sigur Ros has Labeouf starring in their video, which no one is quite sure why or how their relationship formed. One of TMZ's female reporters did however find an entertaining way to describe Labeouf's equipment.... The music video is one that you have to sign in to see, but we still can give you the link to TMZ's show of it. Check it out below:

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