Christine Diane Teigen, known professionally as Chrissy Teigen, is an American model, television personality, author, and social media influencer born on November 30, 1985, in Delta, Utah. Of Thai and Norwegian descent, with her mother from Thailand and her father of Norwegian-American heritage, Teigen was raised in the Pacific Northwest, primarily in Snohomish, Washington. She began her modeling career in her late teens after being discovered in a mall, leading to international work including appearances in magazines and advertisements. Her breakthrough came in 2010 with her debut in the Sports Illustrated Swimsuit Issue, and she gained further prominence in 2014 by gracing the 50th-anniversary cover alongside Nina Agdal and Lily Aldridge. Teigen's multicultural background and relatable online persona have made her a prominent figure in fashion and entertainment.

Teigen's television career expanded through her marriage to singer John Legend in 2013, with whom she co-hosted the Emmy-winning show Lip Sync Battle from 2015 to 2018. The couple has four children: daughter Luna (born 2016), son Miles (born 2018), daughter Esti (born 2023), and son Wren (born 2023 via surrogate). She has been open about personal challenges, including a pregnancy loss in 2020 and struggles with postpartum depression and anxiety. As an author, Teigen has published bestselling cookbooks such as Cravings (2016) and Cravings: Hungry for More (2018), establishing herself as a lifestyle expert with a focus on accessible recipes and family life.

Known for her outspoken liberal activism, Teigen advocates for women's rights, mental health awareness, and social justice issues via her large social media following. She has been involved in philanthropy, supporting organizations like Planned Parenthood and environmental causes. However, her career has faced controversies, including backlash for past social media interactions, such as cyberbullying allegations from 2011 for which she publicly apologized in 2021. Teigen remains an influential voice in media, blending humor, vulnerability, and advocacy in her public life.