Today on Ellen, Jon Hamm discussed how his single mom inspired him to be a day care teacher, and shared his ridiculously hot high school photos. Then Ellen revealed what the Don Draper Barbie doll is hiding under his pants.

Jon Hamm Is Tattooed & Wearing A Thong

Apparently the doll, which doesn't come out until July, comes wearing a thong and an "I Heart Ellen" tattoo on his butt. Though Hamm emphasizes that this is a Don Draper doll, we'll go ahead and assume that this is what he's sporting under his shorts in real life as well.

Earlier: Mad Men Barbie Dolls: Awesome, Absurd