That's OK, Matt, for at least 40 years, when I've been preoccupied with some task, I'll find myself humming "Hail to the Chief"! I have no idea why. I'm pretty sure that the first time I heard that song played, it was for Eisenhower.

For the non-Yanks, "Hail to the Chief" is traditionally played for the arrival of the US President at some state occasion (when there happens to be a band present).

Aloha,
Mark