Horst patriotically joined the U.S. army as a photographer in July 1943, three months before he became a U.S. citizen. (He was German, born Horst Paul Albert Bohrmann but chose to be Horst P. Horst because he was known by his first name and to distance himself from the Nazi officer Martin Bormann.) By then he had been famous for eleven years, thanks initially to lesbian Janet Flanner's New Yorker review of his Paris show in 1932, and he had already shot Dietrich, Davis, Crawford, Coward, Schiaparelli, Chanel, and Garbo, as well as his most famous photograph, The Mainbocher Corset. He had already had an affair with his mentor George Hoyningen-Huene, who took this photo of Horst age twenty-five in 1931 and had dated future-filmmaker Luchino Visconti; and he was five years into his relationship with former British diplomat Valentine Lawford, with whom he would stay for sixty-one years. Together, they adopted and raised a son, Richard J. Horst. Out of favor and largely ignored in the 70s, Horst made a comeback starting in 1980 when Life hired him to shoot nine photos. In 1990, David Fincher used Horst's signature light-and-deep-shadow style to create Madonna's video Vogue, even reenacting his Mainbocher Corset shot. Horst continued to work until close to his death at ninety-three in 1999.