Infamous for her fearlessness and creativity, Mezzo-Soprano Shannon Keegan finds herself at home across genres and in any room that she walks into. Combining committed vocal technique, fierce dramatic skill, and what her friends would call "an uncanny ability to take it too far," Shannon delivers compelling and honest performances spanning musical theater, recital, and opera.​

As a member of the Staatsoper Stuttgart Opernstudio for the 22/23 and 23/24 seasons, Shannon made several important debuts such as Cherubino in Le nozze di Figaro, Der Sandmann in Hänsel und Gretel, Roßweise in Die Walküre, Zerlina in Don Giovanni, Zweite Dame in Barrie Kosky's staging of Die Zauberflöte, Stimme des Ungeborenen in Die Frau ohne Schatten, and Die Schwester in the world premiere of Bernhard Lang's Dora. She was also part of the construction of the sound installation Erda Speaking HELLOHELLO premiered in 2023 and revived in 2024.

​In the summer of 2024, Shannon will complete her time as an Apprentice at the Santa Fe Opera, covering Octavian in Der Rosenkavalier. She will also sing in the Apprentice Scenes program (roles soon to be announced) as well as several concerts and choruses throughout the summer.

In concert, Shannon made her debut with the Berlin Philharmonic under the baton of Kirill Petrenko. She sang as the 1st Alto in  featured trios, quartets, and octets in Mendelssohn's Elias. She then returned to the Berlin Philharmonic in April to sing in Strauss' monolithic opera Die Frau ohne Schatten in a new production at the Baden-Baden Festspielhaus. She then made her Belgian debut in a series of open air concerts with the Flanders Festival Orchestra conducted by Dirk Brossé. Shannon wowed audiences, not only with her singing, but with her impressive ability to down a stein of Belgian beer in one gulp during the nachspiel of the second act finale of Die Fledermaus. Shannon doesn't really drink, but she made an exception for her public.

​In the summer of 2025, Shannon will make her Glyndebourne debut as a Blumenmädchen in the company's premiere staging of Wagner's Parsifal. This landmark production will be conducted by Robin Ticciati and directed by Jetske Mijnssen. Shannon will also cover Rosina in the revival production of Il Barbiere di Siviglia while at Glyndebourne.

A fierce competitor, Shannon has won top honors at competitions such as the Ottavio Ziino International Vocal Competition, The Jensen Foundation, Musicians Club of Women in Chicago, The Rochester Oratorio Society, The National Opera Association, Opera Ithaca, and The Gerda Lissner Foundation.

​A lover of song, Shannon returned to Carnegie Hall as a participant in Renee Fleming’s Song Studio in 2023. She will debut with Schubert's Schwanengesang in the spring of 2025 at the Antwerp Lied Festival, collaborating with Aäron Wajnberg.

In her free time, Shannon enjoys haunting bookstores and taking prisoners to add to her ever expanding "To Be Read" shelf. An avid writer, she subsists on a literary diet composed almost entirely of fantasy and science fiction. Famously, she has been known to say "if it doesn't have a dragon in it, I don't care."

​Shannon is currently based in Germany with her Siamese cat and cast-iron pan.