Joanne Thomas was born in the Rhondda. She studied at the Royal Welsh College of Music and Drama and the Royal Academy of Music with Beatrice Unsworth. Joanne represented Wales in BBC Cardiff Singer of the World 2001.

Operatic roles include 3rd Lady (Magic Flute) and Mme Larina (Eugene Onegin) for Welsh National Opera, Witch, Mother and Dew Fairy (Hansel and Gretel) for WNO MAX and Pocket Opera. Joanne has covered the roles of Santuzza ( Cavalleria rusticana), Penelope (Ulisse), Liubov (Mazepa), Marfa (Khovanshchina), Azucena (Il Trovatore) and Amneris (Aida) for WNO. Other roles include Ramiro (Die Gartnerin aus Liebe), 2nd Lady (Magic Flute), Mama (Grace Williamsí The Parlour), Charlotte (Werther), Mrs Peachum (Brittenís realisation of the Beggarís Opera) and Mrs Slender (Salieriís Falstaff) for Bampton Classical Opera.

Joanne has performed in concert in Germany, Malta, Canada, USA, New Zealand and Australia, including a performance at the Sydney Opera House.

Other notable performances have been the Berio Folksongs with Sinfonia Cymru, Berliozí Les Nuits díete, Elgarís Sea Pictures, and the Britten Charm of Lullabies with BBC National Orchestra of Wales, all broadcast on BBC Radio. Her extensive repertoire of Oratorio includes performances of Verdiís Requiem and Rossiniís Stabat Mater, and Bachís B minor Mass at St Johnís Smith Square.

Recital work has included the Songmakerís Almanac at the Wigmore Hall, St. Davidís Hall lunchtime recitals, and a BBC Radio 3 broadcast from the Fishguard Festival, where she premiered Rhian Samuelsí Three Ancient Songs. Also the premier of Mervyn Burtchís Three Shakespeare Portraits. Joanne has worked for many years with distinguished pianist Graham Johnson, performing in lieder recitals in Germany and Vancouver. Joanne also appears on a new CD of the complete Roger Quilter Folksong settings with pianist David Owen Norris.

Forthcoming engagements include Annina in La Traviata for WNO. Concert engagements include Beethoven's 9th Symphony for WNO and Rossini's Stabat Mater and Verdi's Requiem for Crosskeys Choral Society.