I doubt it. I definitely knew all 3 top 40s from the 70s when I was a teen.
Here's another artist who had hits in the 70s, none in the 80s, then hits in the 90s.
Bad Company
1970s 6 top 40s
1980s no top 40s
1990s 3 top 40s
My friend's kid was raised on 80s on 8, so when I mention certain artists and they don't know any of their hits, I check and see if this is the case. Because my first reaction is "but everyone knew who they were in 80s and beyond that!" But 80s on 8 never plays them.
Here's another artist who had hits in the 70s, none in the 80s, then hits in the 90s.
Bad Company
1970s 6 top 40s
1980s no top 40s
1990s 3 top 40s
My friend's kid was raised on 80s on 8, so when I mention certain artists and they don't know any of their hits, I check and see if this is the case. Because my first reaction is "but everyone knew who they were in 80s and beyond that!" But 80s on 8 never plays them.