Jon Hamm at the Late Show in NYC Pictures

Jon Hamm suited up for an episode of the Late Show, which airs tonight, in NYC yesterday. He has multiple projects to promote with his new film, Friends With Kids, hitting theaters next week and the premiere of Mad Men on March 25. First up is his big screen comedy, which was written and directed by longtime girlfriend Jennifer Westfeldt. Jon and Jennifer both star in the film along with Kristen Wiig, Maya Rudolph, and others. The whole group hung out over the weekend at Vanity Fair's Oscar bash, where Jon's small screen costar, January Jones, partied as well.

Jon, January, and the rest of the cast are gearing up for the much anticipated fifth season of the series. Their onscreen daughter, Kiernan Shipka, hosted an event in LA last night to debut the latest Mad Men collection for Banana Republic. January, meanwhile, was recently spotted out near her home with son Xander, who was born just days before Mad Men picked up best drama at the Emmys last year.