American songs?

So, all day today (and yesterday to a lesser extent) I have had American songs running through my brain. What is most amusing by it all is the sheer volume of American songs that have gone through my mind. The primary one is the Montana song… which I really loved the first time I ever heard it, and really enjoyed each rendition at Kiwanis DCON. (reminds me of the KDCON two years back when I had memorized the New Zealand National Anthem, which I had stuck in my head for about a month afterward). But there's also God Bless America and The Star Spangled Banner, Yankee-Doodle and various other American tunes. Really amusing… especially having Yankee-Doodle in my head of all things… I mean, really!! *sighs* I wonder how long this will last?