It is a dark day when I can wholeheartedly admit that a Justin Bieber song is tickling my fancy in any way, shape or form, let alone being listened to by me. Until yesterday, when this first exploded onto the scene, it was entirely unhip to own up to any degree of Bieberism, but Soundcloud user Shamantis has ensured, at least, that the Canadian eunuch’s music is good for something. Using Paulstretch, an audio editor that specializes in slowing regular music to a grinding halt, Shamantis has taken Bieber’s hit ‘U Smile’ and stretched it to 800% of its normal length – and the result, surprisingly, is one…