Not every music fan reads Billboard Magazine, but every music fan has music on their phone. So Ogilvy & Mather Brazil created a magazine dispenser that gave away a free magazine if you proved you are a fan of the artist on the cover of Billboard Magazine.
To get a free copy, all one needed to do was plug their iPhone into the Fan Check Machine and let it analyze the music library. If the machine found more than 20 songs by the artist on the cover of Billboard, you got the magazine for free. 😎