Ironically some heavier rock ie., Scorps, AC/DC, Van Halen, Nugent etc. comes to mind.
Alot of country music is very patriotic.
I particularly like Merle Haggard's "Mama Tried" and "Okie From Muskogee".
I forgot about Scorpions. - "Don't Stop at the Top" (I'm a sucker for Rocky type songs about working hard and winning).