Australian mezzo-soprano Lotte Betts-Dean is praised for her “irrepressible sense of drama and unmissable, urgent musicality” (The Guardian). She is known for adventurous programming and a wide-ranging repertoire spanning contemporary, chamber and early music, opera, oratorio and cross-genre projects. A committed advocate of new music, she has premiered numerous works and recorded portrait albums of composers including Michael Finnissy, Stuart MacRae, Catherine Lamb and Arthur Keegan.

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.

In 2024, Lotte won the Young Artist Award at the Royal Philharmonic Society Awards, who praised her as "a visionary performer, initiating one bold collaboration after another." She is an Ambassador for 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 for her contributions to music.