On the concert platform, O’Sullivan returns to Festival d'Aix-en-Provence for performances as Ninette in Verdi's Les Vêpres siciliennes cond. Daniele Rustioni, makes her debut in a solo concert with Prague Philharmonia, Dvorak's Stabat Mater with the National Symphony Orchestra of Ireland cond. Jiri Rožeň alongside concerts with the Fantasia Orchestra. A keen recitalist, O’Sullivan will make her debut at LSO St. Luke’s in recital with Thomas Dunford alongside appearances at home in Ireland with regular duo partner, Gary Beecher.
The 2024/25 season saw O’Sullivan make a series of house and role debuts, including Octavian in Der Rosenkavalier for Théâtre des Champs-Elysées, her performance described by Bachtrack as ‘a discovery, bring[ing] to mind Brigitte Fassbaender’. Also for Théâtre des Champs-Elysées, O’Sullivan created the role of Ino in a new production of Handel's Semele, repeating the role for the Royal Ballet and Opera. Elsewhere her plans included role debuts as Maddalena in Rigoletto and Ursule in Béatrice et Bénédict for Irish National Opera, alongside her BBC Proms debut as Sonyetka in Shostakovich's Lady Macbeth of Mtsensk with the BBC Philharmonic cond. John Storgårds and the Page in Strauss' Salome conducted by Sir Antonio Pappano in her London Symphony Orchestra debut. A 2023-2025 BBC New Generation Artist, O'Sullivan's plans included gala concerts with the BBC National Orchestra of Wales cond. Nil Venditti, Chausson's Poème de l’Amour et de la Mer with the BBC Symphony Orchestra and her Wigmore Hall recital debut.
Operatic highlights have included Wellgunde in Wagner's Das Rheingold and Götterdämmerung, Mercédès in Carmen & Meg Page in Verdi's Falstaff for Opernhaus Zürich, Wellgunde in a new Barrie Kosky production of Das Rheingold at the Royal Ballet & Opera and Mercédès in Carmen for English National Opera. Previously a member of the Opera Studio at the Bayerische Staatsoper, O’Sullivan’s roles included Hänsel in Hänsel und Gretel, Kate Pinkerton in Madama Butterfly, the Secretary in Menotti's The Consul, Flora in La traviata, Barena in Jenůfa and a concert performance of Der Rosenkavalier at Carnegie Hall conducted by Kirill Petrenko.
O’Sullivan’s close association with Irish National Opera has seen her sing Charlotte in Massenet's Werther, Mercédès in Carmen, Tisbe in Rossini's La Cenerentola, Third Maid in Strauss' Elektra, Asteria in Vivaldi's Bajazet and Alva in the world premiere of Dennehy's The First Child for the company.
Highlights on the concert platform include Elgar's Sea Pictures at the Prinzregententheater for the Munich Festspiele, Second Harlot in Handel's Solomon on tour with the English Concert cond. Harry Bicket, Mozart's Requiem and Handel's Messiah with the MüncherHofkantorei, Cain in Scarlatti's Il primo omicidio with the Jakobsplatz Orchester cond. Daniel Grossmann, Cousser's The Applause of Mount Parnassus at Wigmore Hall with Ensemble Marsyas cond. Peter Whelan, Handel's Messiah with the Ulster Orchestra and Mahler Symphony No.2 with the Irish National Symphony Orchestra cond. Anja Bihlmaier.
A 2023-2025 BBC New Generation Artist, O’Sullivan was a participant of the Académie du Festival d’Aix-en-Provence in 2023 and studied at the Royal Irish Academy of Music in Dublin.
2025/26 season - 604 words. Not to be altered without permission.