Holly Knight wrote back and thanked me for my email. :D Let me list some of her credits (solo or co-written):
Device - "Hanging on a Heart Attack"
Heart - "Never" and a bunch of others from the "Heart" album and later
Divinyls - "Pleasure and Pain"
Animotion - "Obsession"
Scandal - "The Warrior"
Tina Turner - "The Best," "Better Be Good to Me," and "One of the Living"
Lita Ford - "Stiletto"
Cheap Trick - "Space"
Pat Benetar - "Love is a Battlefield" and "Invincible"
Aerosmith - "Rag Doll"
A couple for KISS's Psycho Circus and Hot in the Shade CDs
Ozzy Osbourne - "Slow Burn"
The "Angel" TV theme (I *know* I've lamented that I wished I liked the show as much as the theme. Now it makes sense. It's like when I for some reason really really liked the Fruitopia commercials then later found out they were Kate Bush. :D)
Those are the highlights as far as the songs I know best. The whole list is here: http://www.hollyknight.com/disco.html

Weird day. Lots of things stirring up. I think I'm overtired.