When I was young, my dad had encouraged me to memorize all of the Presidents of the United States. He then added the Vice-Presidents. I must admit, there was a bribe included in this bet. I used to encourage my students to do the same. We would have weekly quizzes, and we used the following video to help them memorize it. We averaged 10 new presidents each week. It also gave them a mini-history lesson as we went. I would catch them singing it throughout the day. What a fantastic way to learn! Enjoy!
I will put a little bit of a disclaimer in. The video is not necessarily suitable for every grade level and should monitored for usage.