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.”


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