See Jon Hamm and the Cast of Mad Men Sing 'Birdie' (Badly!)

To celebrate their creator Matthew Weiner, the cast and crew of AMC's hit show Mad Men gathered together for karaoke to croon the songs of Bye Bye Birdie, the movie musical that was honored in a plot line in Season Three. The result of the singing party is about as tuneful as karaoke usually tends to be and the drag, shirtless-ness and appearance by a fully tuxedoed Jon Hamm just adds to the amusement. Some of the cast are more into it than others (looking at you, Elisabeth Moss) but all in all, the randomness looks to have provided a pretty good time. Watch it!