But this is the truth – these sisters entered the TV competition the Voice for kids in Germany. The girls' rendition of the 1992 song by Radiohead is completely captivating; their vocals are strong and unique and one plays the piano. Watch the video to see how the judges become completely awed by their talent.

The song of course, is completely iconic and has been covered by many legends throughout the years – including Prince and Kelly Clarkson and Postmodern Jukebox. We're including some of our favourite versions of this track, but please send us which is your favourite on Twitter – or tell us if we missed a really good version.