[fhayek]

I don't think that this is exactly what you are looking for, but Johnny Rivers was the first to record "By the Time I Get to Phoenix." Glen Campbell released it a couple years later, almost exactly as Rivers had recorded it.

Glen Campbell got the hit out of it. Maybe it was how it was marketed.

[abb]

Johnny Rivers’ cover of “Where Have All The Flowers Gone” is my favorite.

[Right Brother]

Glen Campbell made Jimmy Webb a lot of money.

[Clemenza]

Like both Johnny and Glenn’s versions, but the definitive version IMHO is by Isaac Hayes: https://youtu.be/9bbdJSW3pvM

[WriteRight]

Yes, and Rivers’ cover of “Rockin’ Pneumonia” was waaaay better than the original by Huey “Piano” Smith!