jeffersonpowers on "Add post tag name to single post body class"

I am searching for a way to add each post's tag to its single post body class. I specifically need the tag name to appear as a body class (an article class or anything farther in won't help).

Is there a simple bit of code I can add to my theme functions that will do this?

I'm running WordPress 3.6 and using a child theme of TwentyTwelve with minimal changes to the theme.

I would greatly appreciate any help. Thanks!