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

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.

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]}

Oscar Emmanuel Peterson CC CQ OOnt (August 15, 1925 – December 23, 2007) was a Canadian jazz pianist and composer. He was called the "Maharaja of the keyboard" by Duke Ellington, "O.P." by his friends. He released over 200 recordings, won eight Grammy Awards, and received other numerous awards and honours over the course of his career. He is considered to have been one of the greatest jazz pianists of all time, having played thousands of live concerts to audiences worldwide in a career lasting more than 60 years.

Peterson was born to immigrants from the West Indies; his father worked as a porter for Canadian Pacific Railway. Peterson grew up in the neighbourhood of Little Burgundy in Montreal, Quebec. It was in this predominantly black neighbourhood that he found himself surrounded by the jazz culture that flourished in the early 20th century. At the age of five, Peterson began honing his skills with the trumpet and piano. However, a bout of tuberculosis at age seven prevented him from playing the trumpet again, and so he directed all his attention to the piano. His father, Daniel Peterson, an amateur trumpeter and pianist, was one of his first music teachers, and his sister Daisy taught young Oscar classical piano. Young Oscar was persistent at practising scales and classical etudes daily, and thanks to such arduous practice he developed his astonishing virtuosity.

Trixie Smith (1895 – September 21, 1943) was an African American blues singer, recording artist, vaudeville entertainer, and actress. She made four dozen recordings.

Born and raised in Atlanta, Georgia, she came from a middle class-background. She attended Selma University in Alabama before moving to New York around 1915. Smith worked in minstrel shows and on the TOBA vaudeville circuit, before making her first recordings for the Black Swan label in 1922.

Amongst these were "My Man Rocks Me (With One Steady Roll)" (1922), written by J. Berni Barbour, of historic interest as the first secular recording to reference the phrase "rock and roll". Her record inspired various lyrical elaborations, such as "Rock That Thing" by Lil Johnson and "Rock Me Mama" by Ikey Robinson. Also in 1922, Trixie Smith won first place and a silver cup in a blues singing contest at the Inter-Manhattan Casino in New York, sponsored by dancer Irene Castle, with her song "Trixie's Blues," singing against Alice Carter, Daisy Martin and Lucille Hegamin. She is most remembered for "Railroad Blues," (1925) a song that featured one of Smith's most inspired vocal performances on record, and "The World Is Jazz Crazy and So Am I" (1925). Both songs feature Louis Armstrong on cornet. A highly polished performer, her records include several outstanding examples of the blues on which she is accompanied by artists such as James P. Johnson, and Freddie Keppard. She recorded with Fletcher Henderson's Orchestra for Paramount Records in 1924–1925.