Mumford & Sons
When Mumford & Sons hit the scene, fans had never heard anything like their impactful harmonies and intense guitar and banjo riff-offs. However, as they continued on as a band, they were just playing the same types of songs over and over again. "The Cave" was some variant of every album.
Bon Jovi
Bon Jovi has some classic hits that everyone in the bar can sing along to, but beyond that, there's no depth to their catalog. "You Give Love a Bad Name" is so catchy that surely Bon Jovi himself can't stand it himself.