Mad Men's Jon Hamm and his scruffy beard recently paid Elmo a visit on Sesame Street to bestow his wisdom upon viewers. In this "Word of the Day" skit, which airs April 18 on PBS, Hamm teaches us about sculptures as Elmo creates one on the spot.

Instead of talking to young girls about farting, "Mr. Jon" shows us clay, marble and metal sculptures. Afraid he might get a hernia (good luck explaining that one to the kids) while carrying in more sculptures, he rushes Elmo to unveil his creation.

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Earlier this year, Sesame Street spoofed British period drama Downton Abbey as part of its season 43 premiere, turning Violet Crawley and Charles Carson into Muppets.

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Image courtesy of Sesame Street