Speaking of that, I want to point out that, until recently, Adult Hits stations and AC stations tend to play less of popular music from 1996-2003 compared to the 80s and even the late 00s / 10s. You'll hear Poker Face or I Knew You Were Trouble more often than Baby One More Time, Livin' La Vida Loca, or even The Real Slim Shady. A bit of a paradox that may need to be highlighted, especially since that time period was good for MTV and pop music in general.
With that being said, plenty of 90s songs (such as Don't Speak, You Get What You Give, The Sign, Good Riddance (Time Of Your Life), What Is Love) seem to blend well with the current 80s selection on Classic Hits radio. And a few Classic Hits and AC stations have added songs like This Is How We Do It.