Christina Aguilera is a music artist.
Christina Aguilera . She rose to prominence with her 1999 self-titled debut album that spawned the Billboard Hot 100 number one singles ; `` Genie in a Bottle '' , `` What a Girl Wants '' , and `` Come On Over Baby ( All I Want Is You ) '' . She has sold over 17.9 million albums in the United States as of 2014 and 50 million albums worldwide as of 2015 .