It's unclear how big the Venn diagram is of people who are fans of the hit historical musical Hamilton and also Batman, but if you are, you will love "Batlexander Manilton." Not only is it a dead-on adaptation of the Hamilton opening song, the parody actually works out really well—they're both orphans who overcame certain disadvantages (Hamilton was a poor nobody from the Caribbean, Batman is rich but has no superpowers) by being smarter and working harder than everyone else.