HABLANDO DE Dr JEKILL AND Mr HYDE

En la canción de Supertramp titulada "ain´t nobody but me" en la cuarta estrorfa aparece:

You see, I've got a mental disposition
Sometimes I'm mean, sometimes I'm vicious
I'm Dr. Jekyll, I'm Mr. Hyde
So if you want to stay alive
Just give me all you've got to give
And then perhaps I'll let you live