Watch the Cast of Mad Men Sing Bye Bye Birdy

A video has hit the web of the cast of Mad Men rather drunkenly singing “Bye Bye Birdy” in a thank you video for series creator Matthew Weiner. If you’re a Mad Men fan, you’ll crack up seeing Peggy text in her 60′s clothes, Rodger Sterling in a red wig, and Don and Betty Draper getting goofy. Check it out below.