Credits include The Pitt (TV Series, 2025): Dr. Victoria Javadi,TV guest roles in ABC/Netflix's The Letdown and Why Are You Like This?, SBS's The Hunting, and Channel 9's Metrosexual. She co-won Best Female Actor at Tropfest in 2019 and was nominated for Best Performance at Stellar Film Festival and Best Actress at the South Australian Screen Awards for her work in Leela Varghese's Crush. She was a 2019 Raw Comedy State Finalist with her musical comedy band, Coconuts

"Rosie supported me before my first studio sessions as a solo vocalist and her guidance was absolutely invaluable to me.

Beyond being incredibly skilled and knowledgeable/Estill trained, she is such an effective communicator and is able to tailor her teaching style to you. She picked up my learning style/skill level/comfort really quickly and it massively streamlined my learning. I can't believe we were able to achieve so much in so little time.

I would recommend Rosie to every vocalist, singer, actor, and performer I know. She has such a depth and breadth of knowledge to share, and the experience I had with her was incredibly impactful to my craft as both an actor and a vocalist.  She is one of the most effective teachers in Adelaide. I wish I'd seen her sooner. I can't wait to do more sessions with her."

Matt Gilbertson

Multi award-winning comedy and cabaret entertainer and ‘America’s Got Talent: The Champions’ 2020 Grand Finalist.

“Rosie Hosking is the definitive authority on all things voice in South Australia.

Her expert guidance, training and profound technical knowledge have completely transformed my relationship with my voice.

Rosie’s rare ability to demystify complex vocal concepts into clear, actionable tools has equipped me with sustainable techniques essential for thriving through long seasons and demanding touring schedules.”

Actor, Singer, Musician, Creative Coach

Come From Away (New Theatricals & Junkyard Dog Productions), Malpractice (World Productions for iTV), North by Northwest (Key & McLean Productions), Who’s Your Baghdaddy [Or How I Started The Iraq War] (Curveball Creative), The Wharf Revue: De Ja Revue (Sydney Theatre Company), The Killer Beside Me (October Films), Beauty and the Beast (Regal Theatre Worcestershire), The Silent (Lightning Oak Productions), The Ghost of Cassley (FFP Media), Thirty Three (Leicester Square Theatre), Manhattan Parisienne (The Other Palace London), Titanic (Charing Cross Theatre)

“Rosie is by far, one of the most intuitive people I’ve ever worked with on my voice. Her ability to get to the crux of things is second to none and makes every session valuable, effective and enlightening. It’s kind of insane what she can see and hear.

She is the first person to have ever really understood my voice and my relationship to it and therefore, has been able to coax things out of it in ways that make sense to ME.

It's wonderful and unlike any experience I’ve ever had before!”

Back to the Future (Crossroads Live) Linda McFly & Ensemble, Cinderella (Opera Australia) u/s Ella & Charlotte, Ensemble

Graduate of the Western Australian Academy of Performing Arts (WAAPA), 2020

“I was fortunate enough to begin my journey with Rosie at a young age, and I truly couldn’t have asked for a better guide. 

Her depth of wisdom and refined expertise, combined with an incredible attention to detail and a relentless hunger for learning, benefits everyone lucky enough to work with her. 

Rosie has played a huge role in shaping not just the performer I am today, but also the person I’ve grown into over the years. She is my go-to vocal coach and singing teacher.

Adelaide genuinely doesn’t realise how lucky it is to have someone of Rosie’s calibre — an educator, mentor, and all-round inspiring human whose impact extends far beyond the studio.”

Jersey Boys, Thoroughly Modern Millie (The Production Company), Bright Star (Pursued by Bear’s) Jimmy Ray, 9 to 5 the Musical Dwayne, TINA (TEG Dainty) Erwin Bach, Pretty Woman The Musical (Jones Theatrical Group)

Graduate Victorian College of the Arts (BFA Music Theatre)

Rosie’s guidance and support over nearly 20 years have profoundly shaped me as a singer and performer. It’s a testament to her expertise that no matter where I am or who I’m currently studying with, I always book a lesson with Rosie when I’m back in Adelaide to work through challenges.

The number of lightbulb moments in her studio is remarkable—not only because of Rosie’s extraordinary skill and knowledge, but also because of the unique environment she creates: a safe, encouraging space where you feel free to take risks and explore. Her passion for learning about the voice is infectious, and working with her feels like a true collaboration.

I credit so much of my growth and success to Rosie’s influence. If you’re fortunate enough to study with her, treasure the experience—there’s no one more dedicated to your vocal and performance journey.

Head of Music & Chorus Master, State Opera of South Australia
Director of Music, St Peter’s Cathedral, Adelaide

Rosie Hosking is an extraordinary gift to the singing world here in Adelaide.

Her depth of knowledge is unparalleled, and her ability to work with people from all walks of life and at all levels of experience makes her a unique and special teacher, across all styles of vocal music.

Rosie has worked with the youngest children aged 6-9 each year at the St Peter’s Cathedral Winter School. The sessions she delivers are fun, engaging, exploring the kids voices in such an entertaining and interesting way, so that the kids really come out of the session feeling they have learned something useful about their voices.

I have seen Rosie work in group sessions, one-on-one, teaching and advising, and she is an incredible support to all her students.

Mamma Mia! (Michael Coppel) Pepper, 9 to 5 The Musical (John Frost), Nice Work If You Can Get It (Hayes Theatre), Cry-Baby (LPD Productions) Cry-Baby and Baldwin Cover

Graduate of the Western Australian Academy of Performing Arts (WAAPA), 2020

“Rosie has played an instrumental role in my development as a singer and artist. She gave me a rock-solid technical understanding and foundation that aided me through drama school auditions, my music theatre degree and throughout my career. 

Rosie is consistently learning and developing her vocal pedagogy which she demonstrates through her teaching approach. 

Being a student of Rosie’s through the years, I have witnessed and reaped the benefits of her development and constant strive for excellence. 

Her holistic approach to the voice has been an asset for me as a dancer,where she is able to tailor information for me as a vocalist and an artist.”

'The Last Daughter', 'Through a Daughter's Eyes,' 'Off with A-,' 'Don't Quite Belong.', 'The Untimely Revenge of Waffle,' Recipient of the Neil Curnow Award (The Helpmann Academy)

Flinders Drama Centre Graduate

“Before working with Rosie for my speaking voice, I often felt like I was constantly struggling to get sound out without tension.  

Through Rosie’s deep knowledge of vocal anatomy and technique, she guided me, step by step, to reprogram the patterns in my speech that were causing fatigue and strain.

She helped me deepen my understanding of the intricate mechanics of my voice and find a way of speaking that felt efficient and effortless.

Rosie’s approach to vocal coaching has shown me there is so much more potential in my voice and how I can use it.”

Dido and Aeneas (State Opera of South Australia, Nicholas Cannon), The Kanziss Trials (Adelaide Fringe Festival), Foolz: The Imperturbable Logic of the Fool, (Zabou Breitman, Flinders University), Dino Park (Erth, Melbourne Zoo) Erth’s Dino Zoo (Erth, Sydney Opera House, Hong Kong and Adelaide Fringe Tours throughout 2019 and 2020), The Dead (FUYP & STCSA) and The Wolves (RUMPUS, Elizabeth Hay)

2018 Flinders Drama Centre Graduate

“Sometimes starting with a new vocal coach can be overwhelming, but I found Rosie to be welcoming, kind and supportive from the moment I walked through the door. Since then, I have valued her kindness and care throughout each of my lessons, and well as her extensive experience as a performer. 

One of the things I value the most about Rosie is how her sensibility drives her lessons, and how she can tailor your lesson specifically to where you are at. 

She is constantly seeking new research and knowledge, and looking for more ways to help her students, and this shines through with the way she is able to help a broad range of singers and performers, despite their background or training.

I know I will leave my lesson feeling inspired, as Rosie’s passion wears off on you and stays with you long after your session!”

American in Paris (GWB Entertainment), Chicago (John Frost), West Side Story (Opera Australia), The Boy from Oz, Oklahoma & Curtains (The Production Company)

Graduate of the Western Australian Academy of Performing Arts (WAAPA), 2015

"On working with Rosie Hosking, my entire world of singing expanded exponentially. Rosie really is a wealth of knowledge and by developing from technical based work she increased my competency in producing a unique, while versatile sound that is truthfully my own.​

From this, I was able to hit the ground running when I began my studies at WAAPA by already having a strong foundation of technique. Even throughout my time at this world-class institute, I still found myself utilising what I had learnt with Rosie. Now as a graduate and working professionally, I constantly find myself working alongside the many principles Rosie helped me learn and know that my stamina and vocal health are thanks to her. 

Anyone considering learning from Rosie should jump on the opportunity. Her lessons are full of passion and are catered so well for the needs of her students. Her investment in and love for her craft is so palpable, anyone involved with her lessons will undoubtedly walk away feeling inspired and more in tune with their personal instrument.”

The Pirates of Penzance (State Opera South Australia), The 7 Sopranos: Songs from Stage and Screen, Don Giovanni & Il Viaggio a Reims (Opera Australia), The Beautiful Game (Manilla Street Productions), Treasure Hunt! (Perform Education), and Aurora - Sleeping Beauty (Tivoli). Graduate of the Bachelor of Musical Theatre at Griffiths University's Queensland Conservatorium

"Rosie Hosking’s passion for the voice is infectious. Every time I have a lesson with her, I will come away not only having learnt more about my instrument, but feeling more inspired than when I walked in. Rosie effortlessly creates a safe and positive environment for her lessons. Her knowledge of vocal anatomy and encouraging nature make it easy to entrust your voice to her.

I first began learning with Rosie in 2013 before travelling to Brisbane to study a Bachelor of Musical Theatre. Now a professional performer based in Melbourne, I still call Rosie for advice and guidance. Something positive that has come out of the COVID-19 pandemic is that I have travelled back to Adelaide and had the opportunity to have a few lessons again. Rosie continues to blow my mind with ways to fine tune and understand my voice.

​If you are looking to improve your vocal craft, Rosie Hosking is your woman! The lessons I have learned from her have served me constantly and I know they will continue to do so throughout my career. Thank you Rosie."

Shirley Cover, Priscilla Queen of the Desert (Matt Ward Entertainment), Dance Captain/Swing in Converted! (Australian Theatre for Young People, Guys and Dolls (Opera Australia)

"Learning and collaborating with Rosie was life-changing. She was able to thoroughly assess and precisely identify the areas of my technique that were impacting the efficiency of my singing. She provided me with a deep understanding of my instrument and equipped me with a plethora of tools to solve any vocal issues.

Rosie has truly transformed my perspective on singing and improved both my vocal skills and overall vocal health beyond what I ever thought was possible. In my professional career, I constantly reference and apply Rosie’s teachings to navigate singing and vocal performance. Rosie was also an incredible support to me, building my confidence, advocating for me, and championing my unique sound.

The most valuable lesson Rosie has taught me is that efficiency is the key to a long-lasting career. There is nothing more appealing or captivating than someone who is in control and commanding their voice. In my career, I have consistently been praised for my vocal strength, consistency, and durability—and I owe all of this to the work I put into my lessons with Rosie.

She is the most understanding, kind, and patient teacher, and I could not recommend Rosie Hosking’s voice lessons more highly."

Award-winning Director

On working with Rosie on the Adelaide College of the Arts (ACArts) production of the musical "Summer Rain" by Nick Enright and Terrence Clarke....

"Central to the success of the production and also to the joy which surrounded so much of creating the project was the energy, ideas, warm inspiration and generosity of spirit from Rosie Hosking. Rosie worked on the project as head singing and voice coach and over the course of rehearsals was able to transform the Ensemble of young actor/singers. Rosie has a lovely balance of teaching through strong technique and rigorous exploration and at the same time has an encouraging and nurturing way about how she works – as part of the team and with her work one-on-one with the students.

​I remember well that an hour before the production she was still working with one of the lead cast on a number that had been a real challenge – Rosie’s care and commitment were and are evident to all she works with.

I have wonderful memories of working with Rosie and would recommend her for any job that she is being considered for. She is an outstanding teacher and a loved member of any group she works with."