"one hit" just because moldy oldies radio has such a limited playlist.
As mentioned in the article, Smashmouth covered his hit "Can't Get Enough Of You Baby" in the 1990s (or early 2000s).
There were other singles, I don't always know which was the hit side.
If that stupid top40DB still put in top chart positions, I'd challenge you on that. But they don't any more.
But there is a tendency of some of those stations (we have none in Balto any more) to play 1 hit alot, even of groups that had many. And sometimes, it depends on the trends.
Cases in point:
Righteous Bros - Yes, all their hits were played, but by far the 1 that was preferred was "You Lost that Lovin' Feeling". That is, until "GHOST" came along and then even the oldies stations were primarily playing their "Unchained Melody" from then on.
Roy Orbison - Again, his hits were all played, but the most popular to play was his 1st real hit "Only the Lonely". Then "PRETTY WOMAN", the movie, came out and again, even the oldies stations switched to playing mostly "Pretty Woman", his last real hit (of the '60s).