Oh wow, that's a deep cut. I'm deeply impressed and amused. Almost to the point of yodeling ;)

(For those lucky enough not to be this old and/or German, there once were two sisters called "Gitti & Erika" who made some horrible, yet famous Schlager songs – folksy chansons. Including the title melody of the local dub of the "Heidi" anime, triggering basically every "80s/90s kid".)