It's not that I was listening to the local Oldies station that was my clue. It was that the local Oldies station was playing songs by Blondie and Eddie Money.
I suppose the Eddie Money song gets a pass, since it directly references The Ronnettes' 1963 hit "Be My Baby" and in fact features Ronnie Spector her very own self. But there is no such mitigating factor for Blondie's 1978 track "Heart of Glass."
The point is, both songs came out in my lifetime. Isn't there a rule somewhere that says that pop/rock releases during your preschool or grade school years aren't officially Oldies until you're at least 50?
I'm too young to feel this old, I really am.