The stars of hit TV show Mad Men have joined forces with the team behind Facebook to film a video showing users how to work a new feature of the social networking website.
The website is set to launch a new 'Timeline' profile style, so bosses enlisted Jon Hamm and his Mad Men co-stars to introduce the feature.
Hamm, who plays advertising executive Don Draper in the show, is seen in character addressing a meeting of his colleagues and talking about the new Facebook gimmick.
He says, "This device isn't a spaceship, it's a time machine, it goes backwards, forwards, takes us to a place where we ache to go again," as he presents a slide show of Draper's imaginary Facebook profile.