Growing up in Sweden, Hosk was presented with offers to model during high school after her father submitted photographs to various modeling agencies in Sweden when she was 13; she began modeling at 14. She did some modeling in high school but decided to primarily concentrate on her studies instead. After graduating, she decided to pursue a career in the Swedish women's basketball league. Hosk has commented that the level of play in the Swedish professional basketball league was not on par with the WNBA, and that interest in the sport was not as great in Sweden as in the United States. Although she ultimately abandoned professional basketball for modeling, Hosk has said that the intense rigor of practices and travel helped prepare her for the physical and travel demands of the modeling world. After playing professional basketball for two years, she began receiving many job offers and soon moved to New York City to begin modeling full-time. Some writers have speculated that her work with Victoria's Secret was what brought her into the top tier fashion world, but Hosk also identifies her work with photographer Ellen von Unwerth in campaigns for Guess. She is ranked 15th on the Top Sexiest Models list by models.com. She opened the Victoria's Secret Fashion Show in 2016 and wore the Swarovski outfit in 2017. She was chosen to wear the "Dream Angels" Fantasy Bra in the 2018 Victoria's Secret Fashion Show held in New York City on 8 November 2018. The bra, worth $1 million, was designed by Atelier Swarovski and hand-set with 2,100 Swarovski created diamonds. She has walked for designers like Versace, Dior, Jean Paul Gaultier, YSL, Balmain, Moschino, Calvin Klein, Isabel Marant, Brandon Maxwell, LaQuan Smith, Valentino, Michael Kors, Miu Miu, Alberta Ferretti, Blumarine, Max Mara, Dolce&Gabbana, Escada, Etro, Jeremy Scott and many more.
Personal life
Hosk is the daughter of Swedish father Pål and Finnish mother Marja. She has two brothers. Her cousin, Alice Herbst, is also a model. Herbst won the televised competition of Sweden's Next Top Model in 2012. Hosk has worked to support the anti-human-trafficking organization, FAIR Girls. She became interested in the issue after seeing the movie The Whistleblower, which dealt with issues of sex trafficking. Though the media often notes her striking physical resemblance and nominal correlation to Queen Elsa from Disney's 2013 film Frozen, she denies that the character was made in her image.