Baroness Olga Vadimovna von Root (2 December 1901 – 28 June 1967) was a Russian stage actress and singer, born into a noble family of diverse backgrounds. Educated at the Smolny Institute of Noble Maidens, she later ran away and traveled with a Romani family, immersing herself in their music and dance. During the Russian Revolution, she performed in cabarets and nightclubs to support her family, ultimately becoming a star of the stage under the name Olga Vadina. After marrying American industrialist Armand Hammer, she moved to the United States. In New York City, she transcribed numerous Romani ballads and worked with a musician to preserve Russian and Romani music. Her son, Julian Armand Hammer, was born in Moscow, and she is the grandmother of American businessman Michael Armand Hammer and the great-grandmother of American actor Armie Hammer. Root's eventful life was marked by her artistic talents, resilience during political upheaval, and influential connections.

Olga Constantinovna of Russia, born on September 3, 1851, was Queen of Greece as the wife of King George I. Hailing from the Romanov dynasty, she was the eldest daughter of Grand Duke Constantine Nikolaievich and Princess Alexandra of Saxe-Altenburg. Despite feeling initially ill at ease in Greece, Olga became heavily involved in social and charitable work, founding hospitals and schools. However, her attempt to promote a new, more accessible Greek translation of the Gospels sparked riots by religious conservatives. Following the assassination of her husband in 1913, Olga returned to Russia and later set up a military hospital in Pavlovsk Palace during World War I. After being trapped in the palace due to the Russian Revolution, she escaped to Switzerland with the help of the Danish embassy. Unable to return to Greece, she spent her last years in the United Kingdom, France, and Italy. Olga, who married King George I at the age of sixteen, had eight children and briefly served as the regent of Greece in 1920. Her life was marked by significant challenges, including her difficult experiences in Poland and the exile of her family from Greece after the Greco-Turkish War.

Olga Tañón, born on April 13, 1967, is a renowned Puerto Rican singer who has achieved remarkable success in her career. With two Grammy Awards, three Latin Grammy Awards, and 29 Premio Lo Nuestro Awards, Tañón has solidified her position as a prominent figure in the music industry. Beginning her singing career in the 1980s, Tañón's talent was evident from a young age when she participated in a television talent show and later joined the merengue group Chantelle. Her solo career took off in the 1990s with the release of albums like "Sola," "Mujer de Fuego," and "Siente el Amor," which garnered critical acclaim and commercial success. Notably, her collaboration with Mexican singer Marco Antonio Solís on the album "Nuevos Senderos" further expanded her international reach, making her the first Puerto Rican musician to be certified by the RIAA for selling over half a million records. Tañón's contributions to the music industry have been recognized through numerous accolades and achievements, making her a beloved and influential figure in Latin music.

Olga James (February 16, 1929 – January 25, 2025) was an American singer and actress renowned for her iconic role in the film Carmen Jones (1954). Born in Washington, D.C., she was raised by her grandparents before attending Juilliard in New York City, where she developed a close friendship with renowned singer Leontyne Price. Despite studying opera, she favored singing Mozart art songs, German lieder, and French chansons.Her professional career took off after being cast in Virgil Thomson's opera Four Saints in Three Acts and subsequently securing a role in Larry Steele's Smart Affairs at Atlantic City's Club Harlem. However, it was her performance in Carmen Jones that propelled her to stardom, leading to appearances in nightclubs and a Broadway debut in Mr. Wonderful alongside Sammy Davis Jr.James' personal life was intertwined with the music industry, as she married jazz musician Julian "Cannonball" Adderley in 1962 and had a recurring role on The Bill Cosby Show from 1969 to 1971. Following Adderley's death in 1975, she married folk musician Len Chandler until his passing in 2023. Olga James passed away in 2025 at the age of 95 in Los Angeles. Throughout her career, she left a lasting legacy through her vocal credits and various performances.

Olga Vladimirovna Kern, born Olga Vladimirovna Pushechnikova on April 23, 1975, in Moscow, is a renowned Russian-American classical pianist. Her musical journey began at the age of five, and she quickly made a name for herself in the international music scene. Olga Kern gained prominence by winning the prestigious Rachmaninoff International Piano Competition at the age of 17. She further honed her skills at the Moscow Conservatory and the Accademia Pianistica 'Incontri col Maestro' in Imola.Kern's international acclaim soared when she became the first woman in over thirty years to receive the Nancy Lee and Perry R. Bass Gold Medal in the Eleventh Van Cliburn International Piano Competition in 2001. In addition to her stellar performing career, Kern also actively engages in music pedagogy, conducting master classes at esteemed institutions worldwide.In 2016, Olga Kern established the Olga Kern International Piano Competition, aimed at providing young pianists with a platform to develop international careers. She also co-founded the "Aspiration" foundation with her brother, Vladimir Kern, to support budding musicians globally.Living in New York City, Olga Kern continues to make significant contributions to the world of classical music and serves as a faculty member at the Manhattan School of Music. Her dedication to nurturing young talent and her outstanding artistry solidify her status as a leading figure in the classical