Well it sure looks fancy to me.
i had never heard of it before... That could explain why.It's not, really, although I imagine the nori (seaweed) used to hold it together might make it look that way. Spam musubi is Hawaiian utility food, something you'd stuff in a lunchbox or take with you for a snack or a quick meal.
If you can't stomach the Spam, a piece of a ham slice is a good substitute.
i had never heard of it before... That could explain why.