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Christina Aguilera looked unusually conservative while promoting NBC's The Voice at Sony Pictures Studios in LA.

Xtina, 30, who sported a white blouse, black skirt and black tights...will be a part of the show's second season which premieres on February 5.

The songstress said the following at the presser:

    “I had to come back and do a second [season]. How could I not? This is the most exciting show – ever! The suspense value? It’s intense… I think I get more nervous…than the actual artists and vocalists that come up here to audition.”


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Adam Levine, Blake Shelton, Cee Lo Green and Carson Daly will appear on the hit show alongside Ms. Aguilera.