Kelli O'Hara has unequivocally established herself as one of Broadway's great leading ladies. Her portrayal of Anna Leonowens in the critically acclaimed revival of The King and I recently garnered her a Tony Award for Best Leading Actress in a Musical, along with Drama League and Outer Critics nominations. In this 2010 master class at the annual conference of the National Association of Teachers of Singing, she offers a variety of techniques for improving vocal performance.