Now that pentakill kayle is a thing

Nah, it'll be Decakill with Kayle starting her own rival band.

On reddit people say Kayle is just a guest singer in the band. They claim that Kayle is from another band.

The band had that name when only Sona and Mordekaiser were members

Its not about the members, is about the kills that they do.

I don't know why the many downvote... It was just a question -.-