"Just A-Sittin' and A-Rockin'" is a 1941 song composed by Duke Ellington and Billy Strayhorn, with lyrics written by Lee Gaines. It was released on his 1941 album ”Take the ‘A’ Train” (Vintage Jazz Classics).

Early pressings of Victor 27587, released 12Sep41, show "Just a-Settin' and a-Rockin'"; the title was ordered changed to "Just a-Sittin' and a-Rockin'" on labels printed after "2/19" (19Feb42?); no copyright for this song was registered in the 1940s.

Rosemary Clooney (May 23, 1928 – June 29, 2002) was an American singer and actress. She came to prominence in the early 1950s with the novelty hit "Come On-a My House" written by William Saroyan and his cousin Ross Bagdasarian (better known as David Seville, the father figure of Alvin and the Chipmunks), which was followed by other pop numbers such as "Botch-a-Me" (a cover version of the Italian song Ba-Ba-Baciami Piccina by Alberto Rabagliati), "Mambo Italiano", "Tenderly", "Half as Much", "Hey There" and "This Ole House", although she had success as a jazz vocalist. Clooney's career languished in the 1960s, partly due to problems related to depression and drug addiction, but revived in 1977, when her White Christmas co-star Bing Crosby asked her to appear with him at a show marking his 50th anniversary in show business. She continued recording until her death in 2002. She was the aunt of Academy Award winning actor George Clooney.

Clooney was born in Maysville, Kentucky, the daughter of Marie Frances (Guilfoyle) and Andrew Joseph Clooney. Her father was of Irish and German descent and her mother was of Irish and English ancestry. She was raised Catholic. When Clooney was fifteen, her mother and brother, Nick, moved to California. She and her sister, Betty, remained with their father.^{[citation needed]} The family resided in the John Brett Richeson House in the late 1940s.

Edward Kennedy "Duke" Ellington (April 29, 1899 – May 24, 1974) was an American composer, pianist, and big-band leader. Ellington wrote over 1,000 compositions. In the opinion of Bob Blumenthal of The Boston Globe "In the century since his birth, there has been no greater composer, American or otherwise, than Edward Kennedy Ellington." A major figure in the history of jazz, Ellington's music stretched into various other genres, including blues, gospel, film scores, popular, and classical. His career spanned more than 50 years and included leading his orchestra, composing an inexhaustible songbook, scoring for movies, composing stage musicals, and world tours. Several of his instrumental works were adapted into songs that became standards. Due to his inventive use of the orchestra, or big band, and thanks to his eloquence and extraordinary charisma, he is generally considered to have elevated the perception of jazz to an art form on a par with other traditional genres of music. His reputation increased after his death and the Pulitzer Prize Board bestowed on him a special posthumous honor in 1999.

Ella Jane Fitzgerald (April 25, 1917 – June 15, 1996), also known as the "First Lady of Song", "Queen of Jazz", and "Lady Ella", was an American jazz and song vocalist. With a vocal range spanning three octaves (D♭3 to D♭6), she was noted for her purity of tone, impeccable diction, phrasing and intonation, and a "horn-like" improvisational ability, particularly in her scat singing.

Fitzgerald was a notable interpreter of the Great American Songbook. Over the course of her 59-year recording career, she was the winner of 13 Grammy Awards and was awarded the National Medal of Arts by Ronald Reagan and the Presidential Medal of Freedom by George H. W. Bush.

Fitzgerald was born in Newport News, Virginia, the child of a common-law marriage between William and Temperance "Tempie" Fitzgerald. The pair separated soon after her birth and she and her mother went to Yonkers, New York, where they eventually moved in with Tempie's longtime boyfriend, Joseph Da Silva. Fitzgerald's half-sister, Frances Da Silva, was born in 1923. She and her family were Methodists and were active in the Bethany African Methodist Episcopal Church and she regularly attended worship services, Bible study, and Sunday School.

Benjamin Francis Webster (March 27, 1909 – September 20, 1973), a.k.a. "The Brute" or "Frog," was an influential American jazz tenor saxophonist. Webster, born in Kansas City, Missouri, was considered one of the three most important "swing tenors" along with Coleman Hawkins and Lester Young. Known affectionately as "The Brute", he had a tough, raspy, and brutal tone on stomps (with his own distinctive growls), yet on ballads he played with warmth and sentiment. Stylistically he was indebted to alto star Johnny Hodges, who, he said, taught him to play his instrument.

Webster learned to play piano and violin at an early age, before learning to play the saxophone, although he did return to the piano from time to time, even recording on the instrument occasionally. Once Budd Johnson showed him some basics on the saxophone, Webster began to play that instrument in the Young Family Band (which at the time included Lester Young). Kansas City at this point was a melting pot from which emerged some of the biggest names in 1930s jazz, and Webster joined Bennie Moten's legendary 1932 band that included Count Basie, Oran Page and Walter Page. This era has been recreated in Robert Altman's film Kansas City.