At the end of the most recent episode of Mad Men, they played a song by the British group The Kinks called "You Really Got Me." The song came out in 1964 and is one of their biggest hits. Mad Men really uses music well. The scene where Peggy says goodbye to Don really got me!
Enjoy - http://www.youtube.com/watch?v=dk3Ei_yoI4c&feature=colike