After Britney Spears, Christina Aguilera was the most popular female singer of the late-'90s teen pop revival. Unlike many of her contemporaries, Aguilera was a technically skilled singer with a genuinely powerful voice, belting out her uptempo dance numbers and ballads with a diva's panache. Born Christina Maria Aguilera on December 18, 1980, on Staten Island, her parents were of Irish and Ecuadorian stock and her father's military career meant the family moved quite a bit during her childhood.