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.

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