What they're saying: The tiny popster put on some padding for her tour with Justin Timberlake. "She's got curves and looks good as ever," says Redman, who rapped on her song "Dirrty." "People need to back up if they're trying to give her s--- about how she looks."
How she did it: Aguilera, 22, started boxing and hired nutritionist Matt Mahowald, who nixed her candy habit and added protein shakes.
How she feels: "I've grown up a little bit, and I've gotten a little thicker, which I like."
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