Styx - Blue Collar Man
Styx had great songs, but Blue Collar Man was not a power ballad. It was almost pop.
The close Styx came to a power ballad was, "Suite Madamn Blue". One of my all time favorite songs ever. It's the first on one my car flash drives. If you're a patriot, you owe yourself to listen to that epic song. Have a tissue handy for the tears. It was as relevant then as it is today.