At the end of the season finale of Mad Men on June 10th, the theme song from You Only Live Twice was played. The classic James Bond film starring Sean Connery, came out in 1967 which is when the episode took place. It's a great song by Nancy Sinatra and fits Don Draper perfectly since he lived two lives (as Draper and Dick Whitman).
Hope you enjoy it -
http://www.youtube.com/watch?v=XgFtQPgHyek&feature=colike
You Only Live Twice or so it seems,
One life for yourself and one for your dreams.
You drift through the years and life seems tame,
Till one dream appears and love is its name.
And love is a stranger who'll beckon you on,
Don't think of the danger or the stranger is gone.
This dream is for you, so pay the price.
Make one dream come true, you only live twice.
And love is a stranger who'll beckon you on,
Don't think of the danger or the stranger is gone.
Scene from season 5 finale