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Rising Star,  International Classical Crossover Opera Singer Tatiana Kallmann is a Colombian-American Opera Singer, Songwriter, Latinx Female Entrepreneur, Multi-Genre Recording Artist, and the Founder of the Boutique Entertainment Business Crossover Soprano International. With more than 20 years of Italian Bel Canto Operatic Vocal Training primarily in the United States, Italy, Austria, Switzerland, and Germany, Ms. Tatiana Kallmann has received her Master's Degree in Vocal Performance from the Opera Conservatory School in the prestigious University of the Performing Arts at the UNESCO World Heritage “City of Music” Mannheim, Germany. As a Female Entrepreneur and innovator, Tatiana Kallmann has created a one-of-a-kind interactive Classical Crossover LIVE Entertainment Brand and Music Label that seamlessly interconnects & powerfully fuses a variety of musical genres including Pop, Latin, Jazz, & Classical Crossover Music all while innovating the ancient art form of Opera into the Modern Times.


As a Main Stage and Headlining Act, Crossover Soprano International Tatiana Kallmann has premiered for renowned companies, non-profits and cultural festivals such as for the Heidelberg Theatre and Orchestra,​ the Richard Wagner Association in cooperation with the National Theatre of Mannheim,  UNICEF, REWE, Porsche, WELLA Canada, the New York Fashion Week 2023, the Fort Lauderdale Fashion Week, Perkeo-Gesellchaft Heidleberg, the St.Petersburg International Folk Fair Society, The Lions Club Mannheim- Friedrichsburg, Universität Heidelberg Medical Faculty, The City of Mannheim Court of Social Justice, the Rotary Club of Ybor City and in the 3,000 spectators public open-air performance at the annual Festa Italiana of Ybor City. 

Ms. Tatiana Kallmann victoriously completed her Master’s Degree in Opera Vocal Performance from the University of Performing Arts in Mannheim, Germany where she premiered among other roles those of “Pamina”, “Papagena” from W.A. Mozart’s Die Zauberflöte, “Despina” from Mozarts Cosi Fan Tutte and “Sancha” in the World Premiere of the Opera Echt?! at the acclaimed Opera House; the National Theatre of Mannheim, Germany.


As an International Entrepreneurial Crossover Soprano, Ms.Tatiana Kallmann has become the leading Classical Crossover performer and voice in the Historical City of Heidelberg, Germany premiering her Classical Crossover LIVE Opera Performance Act in the Renaissance Heidelberg Castle, the 2,5000 Spectator Congress Hall, the Heidelberg City Hall and was invited as the Star Guest at the 11th Annual AIDS Gala in the Heidelberg Opera House. 

Upon successfully completing her International Master's Degree in Opera Vocal Performance in Germany, Tatiana Kallmann decided to stay in Europe and launched her entrepreneurial dream of starting up her own Boutique Entertainment Business Crossover Soprano International. After living and working for more than 11 years in Europe, Tatiana Kallmann has paved the path for Classical Crossover Vocal Music on an international scale releasing groundbreaking Vocal Recordings including “Bésame Mucho”, “O Sole Mio”, “Gracias A La Vida” and “Nessun Dorma” reaching her first ever 1 MILLION Online Global streams including Spotify, Apple Music, Deezer, Tidal and YouTube and many more.


The city that welcomed and celebrated Ms.Tatiana Kallmann's Classical Crossover vision and lifelong dream was in the heart of Germany, the city of Heidelberg. She was chosen to be featured by the City of Heidelberg in the Heidelberg Image Film producing, performing, and presenting her innovative vocal arrangement to the globally acclaimed song “I Lost My Heart in Heidelberg”.


Tatiana shares her passion for music through her elegant LIVE Performances. In each performance, she marvels & and enchants her international audiences with the artistry of Classical Crossover Music, seamlessly interconnecting and powerfully fusing a variety of musical genres including Opera, Pop, Latin, Jazz, & Classical Music.

As a Female business owner, Crossover Soprano International Tatiana Kallmann serves as a humanitarian world citizen lovingly offering her culturally enriching artistic performances for a variety of non-profit, and charities, organizations such as UNICEF, Casa del Sol Mainz, the Rotary Club, Soñar Despierto Bogotá, the Cervantes Instituto Frankfurt, the Paul Gerhardt Feudenheim Church of Mannheim, UNITY, the Oneness University and Embracing the World® a global initiative that helps alleviate the burden of the impoverished communities.​​ 

The Mission of Crossover Soprano International is to create a space in time where the power of music and the human voice stand in the forefront, vanishing all culturally dividing barriers and in turn, bringing people together through their joined reverence for the Performing Arts. Ms.Tatiana Kallmann is an advocate for Women's Rights in the workplace, a part of the #MeToo Movement within the Recording Arts Industry, and a Latin American Minority voice that stands up for equality, especially for marginalized communities in our society. Through her lifelong musical vocation and living mission, Opera Singer Tatiana Kallmann strongly believes that it is in moments when society-imposed stereotypes, primarily those created by socioeconomic elitism, gender, race, age, and any form of discrimination cease to exist, that music may serve its higher purpose for humanity.

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