The term 'FIRST NAME IN JAZZ' refers to the first names of some of the most influential jazz musicians in history. Ella, Eubie, ARTIE, Louis, DUKE, Lena, Etta, and CAB are all renowned jazz musicians who have made significant contributions to the genre. Ella Fitzgerald was an American jazz singer and songwriter known for her powerful voice and improvisational skills. Eubie Blake was an American pianist, composer, and lyricist who wrote hundreds of ragtime and jazz songs. ARTIE Shaw was an American clarinetist and bandleader who was one of the most popular musicians of the swing era. Louis Armstrong was an American trumpeter, composer, and singer who was one of the most influential figures in jazz. DUKE Ellington was an American composer, pianist, and bandleader who composed thousands of songs and is considered one of the greatest jazz composers of all time. Lena Horne was an American singer, actress, and civil rights activist who was one of the first African-American performers to gain mainstream success. Etta James was an American singer and songwriter who was known for her powerful and emotive vocals. CAB Calloway was an American jazz singer and bandleader who was known for his energetic stage presence and scat singing.