Christina Aguilera is an iconic American singer, songwriter, actress, and television personality. Born on December 18, 1980, she rose to fame in the late 1990s with her debut album, which included hits like "Genie in a Bottle" and "What a Girl Wants." Known for her powerful four-octave vocal range and artistic reinventions, Christina has sold over 100 million records worldwide. She's also known for her roles in films like "Burlesque" and as a coach on "The Voice."