Jon Hamm to Spoof Don Draper on 'SpongeBob SquarePants'

Jon Hamm plays a friendly game of baseball with some friends on Saturday afternoon (September 26) in Los Angeles.

The 44-year-old actor, who was also seen playing tennis a few days earlier, was just revealed to be doing some guest voice work on SpongeBob SquarePants!

According to People, he will spoof his Mad Men character Don Draper.

Playing “Don Grouper,” his character’s “sharp mind and devastating charm make him an irresistible force…when Don’s in the room, everyone laps up his words like overpriced organic honey.”

Don’t forget – SpongeBob SquarePants airs Fridays @ 7:30PM ET on Nickelodeon.

25+ pictures inside of Jon Hamm playing sports in Los Angeles this week…