== Question about singles == 

 Recently, another editor made edits to All I Want Is You (album), adding a song to the single template with its radio add date, and claims that in the US radio dates confirm a single release after the single's album has been released. Also on the article Watch the Throne, the same happened, in that a song was added as a single, Otis (song), and a purchase date was not cited. Which is true? What would confirm an official single? I'm pretty uncertain and would very much appreciate any help with this.