I hate Neil Diamond. I hate, hate, hate Neil Diamond, except for…
Brother Love’s Traveling Salvation Show.
Hard rocking!
Meh. REO’s best rocker was written and sung by the bass player- https://www.youtube.com/watch?v=MQG3vdBcN6g
The Osmonds’ “Traffic in My Mind” rocks even harder than “Crazy Horses”.
I wonder how the older four brothers would have ended up, music-wise, if completely left to their own devices?
Another Eagles song that rocks out pretty nicely, especially with Don and Joe sharing lead guitar duties: James Dean.
“The Man Who Sold The World”, the album after “Space Oddity”, was almost completely droning hard rock. An unusual transitional album for Bowie. But of course he also rocked hard later a few times, no wonder if you have Mick Ronson in your band.
The Moody Blues hardest rocking song is The Story In Your Eyes. 
…and along with Suffragette City, another kick-ass Bowie rocker is Look Back in Anger, with its driving, propulsive beat, and searing little guitar peel played in the verses.
Very early in Chicago’s career, Jimi Hendrix actually told Terry Kath, “You play better than I do.” 
Not to forget Queen Bitch from “Hunky Dory”, a Velvet underground tribute.
I dunno how much I like the song but goddamn, that’s a great title.
“Beat It” by Michael Jackson is a pretty straightforward rock song, and even has a guitar solo by Eddie Van Halen.
Another example: Rumble in Brighton (studio)
Genesis. This ain’t Invisible Touch
The Knife (live with Phil Collins and Steve Hackett)
The Musical Box (around the 4 minute mark Steve Hackett shows he can play the guitar and Phil Collins turns into Keith Moon on the drums)
The mention of Michael Jackson reminded me of this one. “Black Cat” by Janet Jackson.
To (try) to pull a ridiculous coup here - I give you Eric Carmen’s Hungry Eyes.
The most anodyne.
Limp.
Pedestrian.
Ineffectual.
El-wimpo-wimpy song ever.
NOT hard rocking.
Yet, consider:
a.) It’s Eric Carmen
b.) His previous hit was All By Myself
c.) Almost more than likely - in the wake of widespread ridicule and scorn upon reception of aforementioned puddle - the obese, cigar-chomping bigwigs with their tinted shades and goatees were going “Eric…Eric baby - All this, buzz, we’re gettin about you bein a wimp, ya know? They all think you’re some kind of putz or somethin. Weak. Weak’s no good. Ya gotta…sex it up a little, you know? Make yourself all ‘eeeeeehhhhh sexyyyyyyyyyyy’, you know? Show’em you’re more of a man.”
And so, in setting out to make himself more of a man, EC puts out this sexy new song with an accompanying video that depicts him as a pining cuckold to some wild sax-playing lady (who, at one point in the video, mysteriously turns into a different, darker-haired actress) (heh - not sure if that was some sort of continuity glitch or budgeting issue or whatever). But there’s drums, and that fiery sax solo, and the way he belts out “makes me feel all, ri-i-i-ight” tells you EC’s not messing around here, and so in this context it’s way more hard rocking than ABM.
This is my if-Bricker-had-posted-in-CS post.
Good choice.
En Vogue. Their Wikipedia entry describes them as “R&B/pop vocal group”, and lists their genres as “R&B, dance-pop, pop, funk, hip hop, soul”.
But forget all that - and what they look like - and listen to Free Your Mind
Many years ago, I was out in a rock club. The DJ was playing all the usual stuff you would expect - AC/DC, Van Halen, Motorhead, Deep Purple and so on - and in the middle of it all he stuck on Free Your Mind, by En Vogue. Nobody batted an eye and kept on rocking out.
The subsequent hit “Make Me Lose Control” didn’t do much for his image either.
That said, the hardest rocking EC song is by far “Go All the Way” which he wrote and sang while fronting The Raspberries another bubblegum pop-rock band of the 70s.
FTR, my interpretation of the video is that he sees the original girl everywhere he goes, but it’s not her.
Listen to I’m a Man by Chicago. No horns, just one of the best versions of a rock song recorded many times. Southern California Purples from CTA is also a lot different than the usual dreck Chicago put out.
Not quite the same. While Bryan Ferry has always been really good at delivering sarcastically derisive broadsides against the subjects of his songs (including himself), Casanova is the only track I can think of where he actually sounds so angry that it’s like he’s trying to crush you with the heaviness of the song. Actually, that song might be about himself, now that I think of it. Sometimes it’s hard to tell.