Ruby Keeler (1910-1993) was a Canadian-American actress, singer, and dancer, best known for her work in musical films during the 1930s. She emerged as a leading star in the genre of musical theatre and film, characterized by her energetic performances and distinctive singing style. Keeler gained prominence with her roles in Broadway productions and was later cast in iconic films, including "42nd Street" (1933), "Gold Diggers of 1933," and "Footlight Parade" (1933). Her partnership with choreographer Busby Berkeley helped redefine musical numbers in film, emphasizing elaborate dance sequences and visual spectacle. Keeler's performance in "42nd Street," particularly the song "We're in the Money," solidified her status as a symbol of the optimism of the Great Depression era. Though she stepped back from the limelight in the late 1930s after marrying and having children, her influence persisted, inspiring future generations of performers in both film and stage musicals. Ruby Keeler's contributions to the musical genre remain significant, as she helped pave the way for the integration of dance and song in cinematic storytelling.