Actress Mariah Carey attends the Lacoste Lounge at Film Independent's 2009 Independent Spirit Awards... 
(Larry Busacca/WireImage)
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Pop diva Mariah Carey may be moving out of the Big Apple and into the biggest Beverly Hills mansion.
Newlyweds Carey and Nick Cannon have reportedly placed a bid on the Fleur de Lys estate in Beverly Hills, the world's most expensive mansion, listed at $125 million.
The mansion is owned by Texas billionaire David Saperstein and was remodeled with Italian marble, gold-embossed leather walls and gold-leaf crowned moldings.
On five acres, the 45,000-square-foot, French-style estate also boasts 15 bedrooms, a ballroom, multiple kitchens, a screening room and a library complete with a first-edition book collection.
Cannon and Carey plan to pursue their careers in Los Angeles and have been house hunting for the last three months.
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