Secret’s out! Miley Cyrus has been discreetly dating her Bangerz album producer Mike Will Made-It for the past nine months, multiple sources reveal exclusively in the new issue of Us Weekly. “Everybody in her circle knows they’ve been together this whole time,” a source close to the “Wrecking Ball” singer tells Us. Cyrus, 21, first started seeing the producer, 25, soon after splitting from her fiance Liam Hemsworth in September 2013.