I came across this just now.

Rapper formerly known as Kanye West is now just Ye

It made me wonder. Does anyone know of any single artist or group that changed their names. I'm not thinking of early names before they achieved popularity, i. e. Primettes to Supremes.

The main one that comes to mind is the Marvelettes to the Darnells. Does
anyone know of any single artists who did something like this?

I cannot recall any, but perhaps there were others.