Louis Burt Mayer (July 12, 1884 – October 29, 1957) born Lazar Meir (Russian: Лазарь Меир) was an American film producer. He is generally cited as the creator of the "star system" within Metro-Goldwyn-Mayer (MGM) in its golden years. Known always as Louis B. Mayer and often simply as "L.B.", he believed in wholesome entertainment and went to great lengths so that MGM had "more stars than there are in the heavens".

He was born Lazar Meir, possibly on July 12, 1884, to a Jewish family in Minsk, Russian Empire. His parents were Jacob Meir and Sarah Meltzer and he had two sisters—Yetta, born in 1878, and Ida, born in 1883. Mayer first moved with his family to Rhode Island, where they lived from 1887 to 1892 and where his two brothers were born—Rubin, in April 1888, and Jeremiah, in April 1891. Then, they moved to Saint John, New Brunswick, Canada and Mayer attended school there. He and his brothers often faced anti-Semitic bullies and Mayer was constantly involved in fights. His father started a scrap metal business, J. Mayer & Son. In 1904, the 19-year-old Mayer left Saint John for Boston, where he continued for a time in the scrap metal business, married, and took a variety of odd jobs to support his family when his junk business lagged.

Judy Garland (June 10, 1922 – June 22, 1969) was an American actress, singer and vaudevillian. Renowned for her contralto voice, she attained international stardom through a career that spanned 45 of her 47 years as an actress in musical and dramatic roles, as a recording artist and on the concert stage. Respected for her versatility, she received a Juvenile Academy Award and won a Golden Globe Award, as well as Grammy Awards and a Special Tony Award. She was nominated for the Academy Award for Best Actress for her role in the remake of A Star is Born and for Best Supporting Actress for her performance in the 1961 film, Judgment at Nuremberg. At 39 years of age, she remains the youngest recipient of the Cecil B. DeMille Award for lifetime achievement in the motion picture industry.

After appearing in vaudeville with her two older sisters, Garland was signed to Metro-Goldwyn-Mayer as a teenager. There she made more than two dozen films, including nine with Mickey Rooney and the 1939 film with which she would be most identified, The Wizard of Oz. After 15 years, she was released from the studio but gained renewed success through record-breaking concert appearances, including a return to acting beginning with critically acclaimed performances.