Another nugget, Gary Myrick oops, I mean Russ Ballard!
"I got the Key!"
ETA: trivia for Russ Ballard - what Top 20 hit single 5 years earlier had he written?
If you're referring to the one I think you're referring to, it was closer to 10 years earlier ('72). If not, you've stumped me.
He also wrote "God Gave Rock & Roll to You," which was older and wasn't a hit, but which I loved KISS's cover of.