Set on nearly two-thirds of an acre, the Mediterranean-style home has a grand foyer with a sweeping staircase, a fanciful children's room, a gym, a game room, a gift-wrapping area, a movie room, a beauty salon, a guesthouse with a recording studio, and a total of six bedrooms and nine bathrooms. The master bedroom suite contains a lounge, a fireplace and dual bathrooms and closets. Outdoor entertaining areas include a pagoda and a swimming pool with a waterslide and grotto spa.
Aguilera, 30, will be a judge on NBC's upcoming singing competition show "The Voice." She has won Grammys for hits including "Aint' No Other Man" and "Candyman" and she starred with Cher in "Burlesque" (2010).
The property was purchased from Ozzy and Sharon Osbourne in 2007 for $11.5 million, according to public records.
Brooke Kaufman of Hilton & Hyland, Beverly Hills, is the listing agent.