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Rosie’s career spans over 25 years and has taken her across Australia and overseas. She studied classical voice at the Elder Conservatorium, University of Adelaide and has since developed into a highly versatile artist, performing regularly on a variety of stages including music theatre, opera, cabaret, corporate entertainment and contemporary commercial music.


Her professional theatrical debut was in the Australian/New Zealand cast of Cameron Mackintosh's The Phantom of the Opera. More recent theatre credits include Love Burns - National Tour (2022), Sweeney Todd (Mrs Lovett understudy) and Carousel, (2021), Prince Orlovsky in Die Fledermaus (2017) and the Second Lady in The Magic Flute (2016) with the State of Opera of South Australia, Requiem - Adelaide Festival (2020), appearing as a guest artist in Matthew Robinson’s In Good Company and performing the role of Miriam in the World Premiere production of new Australian musical, The Front at the Adelaide Cabaret Festival, 2015. In 2013 she toured Australia with Amity Dry’s musical, Mother Wife and the Complicated Life in the role of Lily.


In 2012, she was awarded the Adelaide Theatre Guide Curtain Call Award - Best Professional Female Performance, for her portrayal of Diana Goodman in Adelaide’s premiere of the rock musical, Next to Normal (Six Foot Something Productions & The Factory).


Other professional credits include The Venetian Twins (Beatrice) for the Sydney Olympic Festival, South Pacific (Dinah) with Seabiscuit Productions.


Rosie makes regular appearances with corporate entertainment company, Ding Productions. She has performed to audiences of 25,000+ at the Adelaide Oval for the Big Bash League's New Year's Eve celebrations for the past four years and appears regularly at the Adelaide Entertainment Centre and Adelaide Convention Centre in Ding's floorshows.


Concert highlights include performing Mozart’s “Exsulate Jubilate” with the Austral Sinfonietta in London, “Off the Air” with ABC Music radio host, Guy Noble and also her appearances with theatre organist, Chris McPhee nationally and around New Zealand.


Rosie is a well-respected educator and voice trainer. She is regularly invited to conduct workshops in vocal technique, song interpretation, shifting styles and more. She currently lectures in Vocal Anatomy and offers one-to-one singing tuition at the University of Adelaide as part of the Bachelor of Music Theatre.

She has also lectured in singing and music at the Adelaide College of Arts, Tabor College and also consults privately from her home vocal studio. This year also marks Rosie’s 15th year with the Pelican Productions MTC team. Throughout this time she has also worked as a Vocal Director on their productions of Sing!OZ, The Little Mermaid, Chitty Chitty Bang Bang and Bring It On - The Musical.



As wonderful as these characters are, the night belongs to Rosanne Hosking’s brilliant portrayal of Prince Orlovsky. She is riveting to watch and listen to whenever she appears on stage. A tribute to Conchita Wurst, she slinks and glides across the stage like a panther, the best Orlovsky this reviewer has seen. Stage Whispers

Rosanne Hosking was a powerhouse. Her strong vocalisation and profound connection to her character made her illness absolutely believable and heart wrenchingly painful. Hosking had the perfect rock sound and her voice sat sweetly in the lyric.

The Barefoot Review

Rosanne Hosking takes the central role of Diana and makes it her own, in a superbly realistic and committed characterisation. It is not merely her acting and physicality that convey everything that her character is experiencing. Hosking goes well beyond that...this is a magnificent performance. GlamAdelaide

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