The New York Post reports that Miley Cyrus will be doing just one more season of Disney's Hannah Montana before saying goodbye to her alter ego for good. The show, which also stars her real-life dad Billy Ray Cyrus, will wrap production forever in 2010, reps for Disney confirmed. The Disney Channel series begins shooting its fourth season January 18, concluding sometime this summer. Now 17, Cyrus is leaving her show at a high point; it still averages nearly 5 million viewers a week. Word is that Miley will now focus full time on her music and film career as she headlines the romantic film The Last Song that premieres in April and makes a cameo in the Sex and the City sequel, which arrives May 28.