Jill Goldsmith Co-Business EditorSpotify founder-CEO Daniel Ek made a three-pronged pitch Wednesday to Howard Stern, the massively popular host whose multi-year contract with satellite broadcaster SiriusXM expires at year end.Asked why Stern might prefer Spotify to SiriusXM, Ek said, “I can’t really speak to Howard Stern specifically” but then expatiated on the “more and more great creators around the world that are turning to streaming service Spotify” for its scale, global reach and