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After taking a hiatus from pants, Christina Aguilera was back to wearing bottoms in Culver City, Calif. on Friday.

PHOTOS: Christina and other stars not wearing pants

The 30-year-old covered up in black opaque tights, a flouncy black skirt worn high around her waist and an ivory long-sleeved tie-neck blouse at a press junket for "The Voice."

A simple, half-up, half-down hairstyle completed her conservative ensemble, which was a complete 180 from her usual, gussied up getups of fishnet stockings, hot pants, and skin-baring tops.

PHOTOS: Stars' sexiest Halloween costumes

On Halloween, Aguilera teamed up with her ex-husband Jordan Bratman to take their three-year-old son Max out for trick-or-treating in L.A. where the mom kept it casual black skinny jeans, boots and a loose-fitting sweater adorned with a skull and crossbones. (Meanwhile Max toughened up in a medieval soldier costume.)

PHOTOS: See what celebs were for Halloween this year

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