Christina Aguilera Greatest HitsChristina Aguilera Greatest Hits Playlist - YouTube(03) Save Image Image gallery: What Was Christina Aguilera's Number One Hit? Recalling a Pop Icon's Breakthrough
![Christina Aguilera Number One Song 15 Years Ago This Week [Video]](https://townsquare.media/site/453/files/2015/01/Christopher-Polk.jpg?w=1200&h=0&zc=1&s=0&a=t&q=89 "Christina Aguilera Number One Song 15 Years Ago This Week [Video]")
