Christina Aguilera is hooked — on makeup. The pop star, 27, has trouble putting down the eyeliner. “Her makeup team will be done, and she’ll look great, but she’ll see herself in the mirror and say, ‘More!’” an insider tells Life & Style. Her biggest vice is foundation: “She’s not happy until you can draw your initials in it!”

But don’t expect Christina to kick the habit any time soon, which is a shame, says the insider: “When she’s in the makeup chair in the morning with no makeup on, she’s stunning. She’s a naturally beautiful girl. But she just doesn’t see it that way.”

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