But her midriff will be forever remembered -- all the more so as the style has crept back into fashion over the last couple of years albeit in a updated, "grow-up" way, as publications from Vogue to Harper's Bazaar have pointed out. A black sparkling bodycon dress with most of its middle part missing at the MTV Music Video Awards proved the singer could turn any garment into a stomach-sporting event. By rocking a less-is-more fashion philosophy, she undoubtedly took the crown for "star who doesn't give a damn about what people think. A fancy strapless iteration matched with a billowing skirt for the red carpet of the Disney American Teacher Awards tried to channel midriff couture. In recent years Aguilera has toned down her wardrobe, embracing more vintage-inspired and modest looks. With black streaks in her platinum blonde locks and a glowing fake tan, Aguilera sparked quite the debate for her provocative stance, while helping to define the new century's post-Girl Power style -- soon to be taken up and revised by the likes of Lady Gaga and Miley Cyrus. Even her fourth look, a graphic tee, was tied up to show her belly.
Skyla. Age: 26.
A black sparkling bodycon dress with most of its middle part missing at the MTV Music Video Awards proved the singer could turn any garment into a stomach-sporting event.
Lyla. Age: 25.
Christina Aguilera UNCENSORED!
Remember when Hillary Clinton wore a pantsuit in her first lady portrait? Bikini tops hold up all three looks. But it was that saw Aguilera reach peak midriff, with the release of her fourth album, "Stripped," and the music video for her most infamous single, "Dirrty. The tops oozed oomph, self-confidence, but also sex.