Jon Hamm is a fine actor, but even Stanislavski would agree that it’s hard to avoid the “Hammaconda” in the room when he’s in front of a crowd.The 51-year-old actor’s southern district has been the topic of much conversation over the years, including a rumor that the Mad Men wardrobe department once forced him to wear underwear to keep viewers from getting too distracted.Intrepid reporter Howard Stern recently asked Hamm to set the record straight, and also got an answer to the age-old question of “boxers or briefs?”Related: WATCH: Jon Hamm asked point-blank about his “Hammaconda”Asked about those rumors, Hamm said, “I have worn underwear every single day of my life.