Christa Bojarzin was born on 5 February 1926 in Königsberg, Germany, and later adopted the stage name Christa Williams; she became a German pop singer whose career spanned the late 1950s and early 1960s. After relocating to Munich during World War II, she studied voice and harp at the Richard‑Strauss Conservatory and later at the Hochschule für Musik und Theater München, where she also developed an interest in jazz influenced by Ella Fitzgerald. Williams first entered the public eye with the singles "Oh, diese Männer" (1957) and "Blacky Serenade" (1957), which did not achieve commercial success, but her breakthrough came in 1958 with the duet "Himmelblaue Serenade" with Jo Roland. In 1959 she recorded the popular duet "My Happiness" with Gitta Lind and represented Switzerland at the Eurovision Song Contest with "Irgendwoher", finishing fourth out of eleven entries. She signed with Ariola in 1962, releasing the album Pilou – Pilou that same year and enjoying moderate chart success through the mid‑1960s. Williams retired from performing in 1968, founded a music school with her husband Albrecht Huwig in Munich, and passed away on 29 July 2012. Her work remains a noted example of post‑war German pop culture.