Infamous for her fearlessness and creativity, 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.​​

Beginning her 2025/2026 season with a bang, Shannon traveled to Chile to make her role, house, and hemisphere debut as Charlotte in Massenet's Werther at the Teatro Municipal de Santiago. Directed by Emilio Sagi and conducted by Maximiano Valdes, the production was universally acclaimed by audiences and critics alike, with particular laudation going to Shannon's immense acting ability. Her "effortless" performance was a tour de force of musical and theatrical skill. Continuing a season of exciting debut's Shannon will then return to Staatsoper Stuttgart to sing Suzuki in Puccini's Madama Butterfly before she makes her debut in the same role at Bayerische Staatsoper that very same month. Directly following, Shannon will sing  Zweite Magd in Elektra under the baton of Vladimir Jurowksi while simultaneously rehearsing a Blumenmadchen in Parsifal with Sebastian Weigle, both at the Bayerische Staatsoper.

​​In the summer of 2025, Shannon made her Glyndebourne debut as a Blumenmädchen in the company's premiere staging of Wagner's Parsifal. This landmark production was conducted by Robin Ticciati and directed by Jetske Mijnssen. Shannon also covered Rosina in the revival production of Il barbiere di Siviglia while at Glyndebourne and made such an impression that she was invited back to portray another of Rossini's heroines in a future season.  ​​

​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.​

​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. 

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, winner of Opernwelt's World Premiere of the Year 2024. She was also part of the construction of the sound installation Erda Speaking HELLOHELLO premiered in 2023 and revived in 2024.

​Shannon completed her time as an Apprentice in The Santa Fe Opera's 2024 season, covering Octavian in Der Rosenkavalier. She also sang in the Apprentice Scenes program as Der Komponist from Ariadne auf Naxos and The Fox in The Cunning Little Vixen. 

A lover of song, Shannon returned to Carnegie Hall as a participant in Renee Fleming’s Song Studio in 2023. Due to her success at the program, Shannon was invited to make her recital debut as part of Carnegie Hall's Citywide Series. She presented Schubert's Schwanengesang to much acclaim. A month later, she brought the same recital to The Antwerp Lied Festival for her European recital debut. The public was thrilled by her "quasi operatic" interpretation.

​In her free time, Shannon enjoys haunting bookstores and taking prisoners to add to her ever expanding "To Be Read" shelf. An avid reader, 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." When not reading, Shannon loves to write poetry, chip away at her own novel, cook extravagant meals WAY above her skill level, and watch movies. Science fiction and fantasy, of course. 

Shannon is currently a freelance nomad with her Siamese cat and cast-iron pan.