Why aren't there more people called Elvis?

[LynetteScavo]

I think it's very cool.

I once taught an Elvis. His middle name was Goodluck.

tethers at elvii

my sis in law who i hate cant stand is called elvic

My cousin has a DS with the middle name Elvis. It sounds pretty ridiculous TBH.

I just reminds me of Elvis Presley.
I wonder why Diana was never that popular a name either, considering how popular princess Diana was.