Christina Landshamer is a highly sought-after concert, opera, and lieder singer, renowned for her versatility across a wide range of repertoire. She regularly collaborates with leading conductors such as Herbert Blomstedt, Manfred Honeck, Alan Gilbert, Marek Janowski, Marie Jacquot, Pablo Heras-Casado, Franz Welser-Möst, and Christian Thielemann. These collaborations bring her to top orchestras, including the Berlin Philharmonic, the Bavarian Radio Symphony Orchestra, the Dresden Staatskapelle, the NDR Elbphilharmonie Orchestra Hamburg, the Gewandhaus Orchestra Leipzig, the SWR Symphony Orchestra Stuttgart, the Munich Philharmonic, the Royal Concertgebouw Orchestra Amsterdam, the Tonhalle-Orchester Zurich, the Orchestre de Paris, the Accademia Nazionale di Santa Cecilia in Rome, the Vienna Philharmonic, the Swedish Radio Symphony Orchestra Stockholm, and the NHK Orchestra Tokyo. In the United States, she has performed with the New York Philharmonic, the Cleveland Orchestra, as well as the Pittsburgh and Montreal Symphony Orchestras.

On the opera stage, Christina Landshamer has appeared at the Stuttgart State Opera, the Opéra du Rhin in Strasbourg, and the Komische Oper Berlin. She performed under Nikolaus Harnoncourt at the Theater an der Wien and under Sir Simon Rattle at the Salzburg Festival. She has portrayed Pamina in "The Magic Flute" both at the Bavarian State Opera and the Het Muziektheater Amsterdam, Ännchen in Weber's "Der Freischütz" under Christian Thielemann at the Semperoper Dresden, Almirena in "Rinaldo" at Glyndebourne, and Sophie in "Der Rosenkavalier" at the Lyric Opera of Chicago. Most recently, she sang the role of Woglinde in Wagner's "Rheingold" under Kirill Petrenko at the Bavarian State Opera. She also took on the soprano roles in the spectacular production of Haydn's "Creation" by La Fura dels Baus in Paris and at the Mostly Mozart Festival in New York. In May 2024, she was heard again as Pamina in Nikolaus Habjan's production with the Cleveland Orchestra under Franz Welser-Möst.

The 2024/25 concert season promises numerous highlights: She will tour Germany with Bruckner's Te Deum under Pablo Heras-Casado and the SWR Symphony Orchestra Stuttgart. She will also perform Beethoven's 9th Symphony with the Orchestra de Valencia under Alexander Liebreich, the Mozarteum Orchestra Salzburg under Roberto Gonzales Monjas, and the Antwerp Symphony Orchestra under Jaap van Zweden. Further engagements include Mozart's Requiem with the Bamberg Symphony Orchestra under Manfred Honeck, Mendelssohn's "Lobgesang Symphony" with the Bavarian Radio Symphony Orchestra under Herbert Blomstedt, Bach's "St. John Passion" with the Helsinki Radio Symphony Orchestra under Nicholas Collon, and Beethoven's "Egmont" with the Berlin Philharmonic under Gustavo Dudamel.

With her warm, lyrical soprano voice, Christina Landshamer is also a passionate lieder singer. Together with her piano partner Gerold Huber, she is a welcomed guest in the major lieder venues such as the Schubertiade Schwarzenberg, the Pierre Boulez Saal in Berlin, the Hugo Wolf Academy, Wigmore Hall in London, Weill Recital Hall at Carnegie Hall in New York, and Kioi Hall in Tokyo. Numerous CD and DVD recordings with labels like Decca, Deutsche Grammophon, Sony Music, Pentatone, BR Klassik, Oehms Classics, Phi, EMI, and Unitel document her artistic achievements. In 2022, she released a solo CD on the Pentatone label featuring works by Haydn, Mozart, and Beethoven, accompanied by the Akademie für Alte Musik Berlin.

Since 2021, Christina Landshamer has been sharing her knowledge and experience as a Professor of Voice with young students. In 2024, she will join the faculty at the Stuttgart University of Music and Performing Arts (HMDK Stuttgart).