If it's been a while since you've watched something really weird, now might be a good time to check out the video for Sigur Rós' "Fjögur Píanó" starring Shia LaBeouf and his... well... he's naked. 

As befits the Icelandic band's ambient post-rock, this clip has all the classic hallmarks of an art film: Slow-mo eroticism, balletic violence, smiling while crying, underwater cars, butterfly imagery and the most artsy thing of all—full-frontal male nudity. Because when you see a wang in a movie, you know some serious drama is afoot. (Unless "Harold and Kumar" is in the title).

So to see the kid from Even Stevens/Transformers/Indiana Jones bare it all at age 26, check out the "Mystery Film Experiment" for the Valtari track over here. In case you're not up for an eight-minute film that only vaguely makes sense, you can click to :42 and :48 for the goods. It's probably not something you ever wanted to see, but when it's out and about, you almost have to look.