About Us

nathalie headshot Nathalie Haller 

(818) 438-4078 

Nathalie has specialized in teaching Broadway and Pop vocal technique to L.A. kids for more than a decade and her students appear regularly on television, and in national tours along with musical productions at local schools and community theaters.  She most recently served as Music Director for Act One Children’s Theater’s newest production of “Annie.” As a theatre producer, she helmed an eight-month sold out run in Hollywood of the critically acclaimed musical parody “The Real Drunk Housewives of the San Fernando Valley,” and most recently, “Rock Van Winkle.” She and Bill created a ground-breaking music theory program Music In Action Which taught elementary school children how read and play rhythmic notation on sight, resulting in increased math and reading scores for participating schools in the Santa Susana and Burbank Unified School Districts.  She loves teaching voice and working with singers and piano students of all ages.  Fun fact: Nathalie had a character named after her in the Broadway jukebox musical “All Shook Up.” True story!


bill headshotBill Haller

(818) 383-1025


I studied voice with Lee & Sally Sweetland and vocal coaching with David Craig, and, yes, there is a difference between the two! As voice teachers, Lee & Sally focused on the art of singing as an athletic event, a whole-body experience with the mantra “singing is energy.” I cannot say enough great things about them because their impact on me as a singer and an artist was profound. Because of their influence and overwhelmingly positive support, I was able to find so much more joy in the creative sphere of music than I had ever imagined. As one of Broadway’s most revered vocal coaches, David Craig’s focus was song interpretation and presentation, an exacting science that I would learn was genuinely freeing when in performance mode. I would be remiss if I didn’t also mention the influence of acting teacher Charles Conrad who, with Sandy Meisner, started the fabled Neighborhood Playhouse in New York. Charles’ ideas and talks on creativity and his approach to preparation and performance were fundamental to my carrying on – and evolving with – the teachings of these great performance masters. It is a privilege to share this path with you.

A member of SAG-AFTRA and Actor’s Equity, I began my professional career in 1979 as a song and dance man in commercials for McDonald’s, AC-Delco and King Cola;

Won the L.A. Drama Critics Circle Award for Best Production 1991 “Present Laughter” at the Melrose Theatre;

Originated the lead role of Tom Ambrose in Joe DiPietro (“Memphis”) and Jimmy Roberts’ (“I Love You, You’re Perfect, Now Change”) world premiere “The Thing About Men,” at Tim & Buck Busfield’s B Street Theatre in Sacramento;

Wrote and produced the hit BMG children’s album “Musical Beans; Animal Songs for Children” which sold 60,000 units in the U.S. in less than 10 months;

Created and developed a ground-breaking music theory program for elementary schools called “Music In Action,” which taught sight-reading skills in rhythmic notation utilizing drumsticks and hip hop loops. The program was licensed to school districts including Burbank, Las Virgenes, and Simi Valley along with private schools;

Has written, produced and directed numerous plays, musicals and corporate shows since the age of 16;

Garry Marshall (“Happy Days,” “Pretty Woman”) exec produced the hit children’s musical “Marshall & Haller’s Snow Queen” at his Falcon Theatre in Toluca Lake which enjoyed two extensions;

His musical parody, written with Kelly Holden-Bashar, “The Real Drunk Housewives of the San Fernando Valley,” ran for eight months in Hollywood;

His newest musical “Rock Van Winkle,” had a developmental run in Hollywood and is now moving into its next phase;

His voice students — and vocal coaching clients — continue to work on Broadway,  in national tours, animation, video games, and theme parks.