Which famous Omega was a well-known tenor in the 1920s?

Roland Hayes is recognized as a famous tenor from the 1920s, making him the correct choice for this question. He was among the first African American classical singers to gain national and international acclaim. Hayes had a significant impact on the world of music during his time, not just because of his outstanding vocal talent, but also due to his role in breaking racial barriers in the music industry. His performances paved the way for future generations of African American artists in classical music and had a lasting influence on the genre.

In contrast, the other individuals listed have made significant contributions to their respective fields, but not as tenors in the classical music genre during the 1920s. Max Roach was a pioneering jazz drummer and composer, known for his innovation in jazz music. Vince Carter is a contemporary basketball player, while William "Count" Basie was a legendary jazz orchestra leader and pianist, known for his work in the big band movement. While all these figures are notable, none share the specific musical legacy of being a well-known tenor like Roland Hayes.