Pioneers of rock n roll. Yes, you can talk about The Beatles.

Your favorite bands never exist if Elvis doesn't steal that sheet.

I think that's pretty presumptuous. More likely, someone else steals it before him. It's the originators that created the sound. Yes, he became immensely popular copying it, but the music itself was undeniable. It would have been someone else if not him. That's like saying rap music doesn't become a global phenomenon without Vanilla Ice and MC Hammer.