In what has to be one of the longest-lead album announcements of all time, Swedish electro-pop duo Karl X Johan will release their as-yet-untitled debut album on April 29, 2014. Way, way before that, though, they'll put out a new single, "Never Leave Me", on June 4 of this year via Emotion. The tune itself is a looped slice of synthetic euphoria with a sticky hook that repeats the titular refrain boldly.