Christina María Aguilera (born December 18, 1980) is an American singer-songwriter, record producer and actress. Born in Staten Island, New York and raised in Wexford, Pennsylvania, she made her first publicity appearances on television shows as a child, including on Star Search and The Mickey Mouse Club. In 1998, Aguilera signed a contract with RCA Records after recording "Reflection" for Mulan. A year later, Aguilera debuted her self-titled debut studio album, which gained international success and spawned three number-one hits, "Genie in a Bottle", "What a Girl Wants" and "Come On Over Baby (All I Want Is You)". Her two next studio albums, Mi Reflejo (2000) and My Kind of Christmas (2001), both achieved moderate success worldwide.

Displeased with her lack of input, Aguilera parted ways with her management and assumed creative control for her fourth album, Stripped (2002), which yielded two worldwide chart toppers, "Dirrty" and "Beautiful". After collaborating with several artists, Aguilera began to bring 1930s and 1940s blues, soul and jazz influences to her fifth album, Back to Basics (2006). Three top-ten singles were released from it, "Ain't No Other Man", "Hurt" and "Candyman". Her sixth studio album, Bionic (2010), was more experimental and incorporated electronic elements into its songs and gained little impact on charts worldwide. That same year, Aguilera made her acting breakthrough on Burlesque with Cher as well as executive producing its successful soundtrack. She returned to her pop roots with her seventh studio album, Lotus (2012), which incorporated elements of electropop, dance-pop, soft rock and country-pop into its songs and became her lowest selling album to date. Aguilera is an original coach on The Voice, having appeared in four of its five seasons since 2011.

During Aguilera's first decade in the music industry, she became a prominent figure in mainstream popular music and popular culture. Since her debut, she was recognized as a pop icon,"Princess of Pop",and "Voice of Generation".[3] Her work has earned her numerous awards and accolades, including four Grammy Awards, one Latin Grammy Award, two Billboard Music Awards, two MTV Music Video Awards, and a star on the Hollywood Walk of Fame. To date, Aguilera has sold over 50 million albums worldwide,with 14.5 million unites certified in the United States alone.Rolling Stone ranked her number fifty-eight on their list of the 100 Greatest Singers of All Time, ranking as the youngest and only artist on the list under the age of thirty. She was ranked the 20th Artist of the 2000–09 decade by Billboard and is the second top selling single artist of the 2000s, behind Madonna. Aguilera was ranked number eight in VH1's 100 Greatest Women in Music and was one of Time's 100 Most Influential People in the World in 2013. Outside of her work in the entertainment industry, Aguilera is involved in charitable activities through human rights, world issues, and her work as a UN ambassador for the World Food Programme.