In 1925 in jazz standards that were published included "Dinah" and "Squeeze Me". Musicians born that year included Art Pepper and Zoot Sims.

Louis Armstrong (August 4, 1901 – July 6, 1971), nicknamed Satchmo or Pops, was an American jazz trumpeter and singer from New Orleans, Louisiana.

Coming to prominence in the 1920s as an "inventive" cornet and trumpet player, Armstrong was a foundational influence in jazz, shifting the music's focus from collective improvisation to solo performance. With his instantly recognizable deep and distinctive gravelly voice, Armstrong was also an influential singer, demonstrating great dexterity as an improviser, bending the lyrics and melody of a song for expressive purposes. He was also greatly skilled at scat singing (vocalizing using sounds and syllables instead of actual lyrics).

Renowned for his charismatic stage presence and voice almost as much as for his trumpet-playing, Armstrong's influence extends well beyond jazz music, and by the end of his career in the 1960s, he was widely regarded as a profound influence on popular music in general. Armstrong was one of the first truly popular African-American entertainers to "cross over," whose skin-color was secondary to his music in an America that was severely racially divided. It allowed him socially acceptable access to the upper echelons of American society that were highly restricted for a black man. While he rarely publicly politicized his race, often to the dismay of fellow African-Americans, he was privately a strong supporter of the Civil Rights movement in America.^{[citation needed]}

Bessie Smith (April 15, 1894 – September 26, 1937) was an American blues singer.

Nicknamed The Empress of the Blues, Smith was the most popular female blues singer of the 1920s and 1930s. She is often regarded as one of the greatest singers of her era and, along with Louis Armstrong, a major influence on subsequent jazz vocalists.

The 1900 census indicates that Bessie Smith was born in Chattanooga, Tennessee in July 1892. However, the 1910 census recorded her birthday as April 15, 1894, a date that appears on all subsequent documents and was observed by the entire Smith family. Census data also contributes to controversy about the size of her family. The 1870 and 1880 censuses report three older half-siblings, while later interviews with Smith's family and contemporaries did not include these individuals among her siblings.

Bessie Smith was the daughter of Laura (née Owens) and William Smith. William Smith was a laborer and part-time Baptist preacher (he was listed in the 1870 census as a "minister of the gospel", in Moulton, Lawrence, Alabama.) He died before his daughter could remember him. By the time she was nine, she had lost her mother and a brother as well. Her older sister Viola took charge of caring for her siblings.

George Gershwin (September 26, 1898 – July 11, 1937) was an American composer and pianist. Gershwin's compositions spanned both popular and classical genres, and his most popular melodies are widely known. Among his best known works are the orchestral compositions Rhapsody in Blue and An American in Paris, as well as the opera Porgy and Bess.

Born in Brooklyn to a Ukrainian father of Jewish descent and a Russian mother, Gershwin studied piano under Charles Hambitzer and composition with Rubin Goldmark and Henry Cowell. He began his career as a song plugger, but soon thereafter started composing Broadway theatre works with his brother Ira Gershwin and Buddy DeSylva. He moved to Paris in an attempt to study with Nadia Boulanger, where he began to compose An American in Paris. After returning to New York City, he wrote Porgy and Bess with Ira and author DuBose Heyward. Initially a commercial failure, Porgy and Bess is now considered one of the most important American operas of the Twentieth Century. Gershwin moved to Hollywood and composed numerous film scores until his death in 1937 from a brain tumor.

Michael Tilson Thomas (born December 21, 1944) is an American conductor, pianist and composer. He is currently music director of the San Francisco Symphony, and artistic director of the New World Symphony Orchestra.

Tilson Thomas was born in Los Angeles, California to Ted and Roberta Thomas, a Broadway stage manager and a middle school history teacher respectively. He is the grandson of noted Yiddish theater stars Boris and Bessie Thomashefsky. Tilson Thomas studied at the University of Southern California, studying piano with John Crown and composition and conducting under Ingolf Dahl. As a student of Friedelind Wagner, Tilson Thomas was a Musical Assistant and Assistant Conductor at the Bayreuth Festival.

Tilson Thomas is openly gay and lives in San Francisco with his partner of thirty years, Joshua Robison.

Tilson Thomas has conducted a wide variety of music and is a particular champion of modern American works. He is also renowned for his interpretation of the works of Gustav Mahler; he has recorded all nine Mahler symphonies and other major orchestral works with the San Francisco Symphony. These recordings have been released on the high resolution audio format, Super Audio CD on the San Francisco Symphony's own recording label. Tilson Thomas is also known as a premier interpreter of the works of Aaron Copland, Charles Ives, and Steve Reich.