Praised by The Guardian for her “irrepressible sense of drama and unmissable, urgent musicality”, Australian mezzo-soprano Lotte Betts-Dean is passionate about curation and programming, with a broad repertoire that encompasses contemporary music, art song, chamber music, early music, opera, oratorio and non-classical collaborations. Lotte is an Ambassador of Donne, a charitable foundation dedicated to promoting gender equality in the music industry, and in 2022 she was named as an Associate of the Royal Academy of Music, an honour reserved for alumni who have contributed significantly to the music industry. 

Lotte has established herself as a leading interpreter of new music, having given the world premieres of over 30 works and performed at many of the major festivals and venues around the UK, in Australia and internationally. Recent highlights include performances in Bayerische Staatsoper's Die Passagierin and Aldeburgh Festival's world premiere of A Visit to Friends, as well as debuts with Ensemble Musikfabrik and London Sinfonietta. Lotte also recently joined the Colin Currie Group for performances of Steve Reich's Drumming, and the Manchester Collective in their tour to Germany. The 2025/26 season sees the launch of Lotte's album everything you've ever lived on Delphian Records, a return to the Bayerische Staatsoper, and major debuts with the Philharmonisches Staatsorchester Hamburg and Philharmonia Orchestra. 

Alongside pianist Joseph Havlat, Lotte won the 2019 Oxford Lieder Young Artist Platform and subsequently gave a recital at the 2019 Oxford Lieder Festival — Lotte has returned to the festival every year since. Together they have performed many wide-reaching programmes of song and new music, including several outings of Messiaen’s largest vocal work Harawi ; a performance recently described by the Irish Times as ‘absorbing…distinctive, pointed and consistently beautiful.’ Other major works performed in 2022/23 include Peter Maxwell Davies’ monodrama The Medium, Ligeti Sippal dobbal nadihegedüvel, Crumb American Songbook IV: Wings of Destiny, Cage Litany of the Whale, Nono La fabrica illuminata, Pärt Stabat Mater, Lamb Parallaxis Forma, and the WP of Brett Dean Madame Ma Bonne Soeur. 

Lotte is a regular collaborator with various chamber groups in the UK and Australia, including EXAUDI Vocal Ensemble, Explore Ensemble, Ensemble x.y, Ligeti Quartet, Armida Quartet, Marsyas Trio, La Vaghezza Baroque, Rubiks Collective, Dots+Loops Brisbane, The Song Company, Van Diemen’s Band, and previously as Associate Artist with Southbank Sinfonia. She has also performed as soloist with English Chamber Orchestra, Bath Bach Choir. Manchester Collective, and the Australian Chamber Orchestra, among others, and non-classical collaborations include recording with Luke Abbott/Jack Wyllie (2023) and tours with DJ Pete Tong (2018) and electronic duo The Presets (2014). Lotte is a Young Artist alumnus of Britten Pears Arts (2022), Musician’s Company (2019), Imogen Cooper Music Trust (2018), City Music Foundation (2017) and the Tait Memorial Trust (2019), as well as Oxford Lieder (2019). She has participated in and led workshops for the composition departments of Oxford University, Southampton University, City University, Guildhall, Royal Academy of Music and the Cornelius Cardew Trust. 

Lotte is a graduate of the Royal Academy of Music (MA with Distinction) and the Melbourne Conservatorium of Music (BMus 2012). She also completed a Fellowship at the Australian National Academy of Music (ANAM) in 2014. While at RAM, Lotte was a member of Song Circle and a soloist for the popular Bach Cantata Series, performed in masterclasses with Sir Thomas Allen, Bengt Forsberg and Dame Felicity Lott, and was supported by the Josephine Baker Trust. She has also studied in Milan (Accademia Teatro alla Scala), privately in New York, and at the 2016 Internationales Musikinstitut Darmstadt with Donatienne Michel-Dansac and the Vokalsolisten Stuttgart. Teachers and coaches have included Anna Connolly, Catherine Benson, Audrey Hyland and Caitlin Hulcup, and masterclasses as a Britten Pears Young Artist have included Dame Ann Murray, James Baillieu, Susan Manoff and Roderick Williams.