Spotify has a ‘special announcement’ to make on Wednesday

Spotify is set to reveal a special announcement in just five days. The CEO of the music streaming service, Daniel Ek, will be giving a keynote address at Ad Age Digital, and immediately after, Spotify will hit us with the news. Of course, as soon as the announcement is made, we'll give you the scoop on what's up. In the meantime, what do you think it'll  be?