Christina, however, had a bigger voice. Much bigger.
And, I remember commenting that, although Britney was the bigger hitmaker at the time, that I thought Christina's career had legs, and we'd still be talking about her a decade later. Of course, I could not have predicted that Britney would go and shave her head, but I stand by my analysis.
I gained a greater appreciation for this tune a decade later, when it was time for the Greatest Hits album, and Aguilera uncorked this:
What a fantastic, mature reinterpretation of an already clever song!