Mariah Carey wants to buy the world's most expensive mansion. The "Hero" singer has reportedly made an offer on the Fleur de Lys in Beverly Hills - a luxurious estate which has been priced at $125 million.

The five-acre estate - which was built by Texan billionaire David Saperstein - hosts 15 bedrooms, a spa and a cinema screening room which seats 50 people.

Mariah Carey could be planning a second wedding to husband Nick Cannon. The actor-and-rapper has hinted the couple could tie the knot for the second time at a huge party to mark the anniversary of their low-key nuptials in the Bahamas last April.

He said: "We have spoken about it, and it's coming up - that's all I can say. We are going to do what we said we were going to do from the very beginning."

Mariah Carey has been visiting a fertility clinic. The 38-year-old singer and her husband Nick Cannon - who married last year following a whirlwind romance - were seen leaving a Beverly Hills' Southern California Reproductive Center last week, where they reportedly met with a prenatal specialist.

A source told gossip blogger Perez Hilton: "Nick and Mariah are trying anything and everything to conceive. After almost a year of trying to natural way, they visited a fertility clinic to help make their baby dream come true."

Nick Cannon likes being known as "Mr. Carey." The actor-and-rapper - who married Mariah Carey following a whirlwind romance last year - doesn't mind when people say his wife is more famous than him, claiming he just takes the teasing in his stride.

Asked how he feels when people say cruel things about his wife, Nick replied: "My heart goes out to my wife every time she has to hear something like that. I don't care about nothing, I'm just silly. I make fun of me all the time, I'm like, 'Call me Mr. Carey, who cares?'"

Mariah Carey and Nick Cannon are trying to "multiply." The couple are desperate to have children and plan to start work on the first member of their large family as soon as possible.

Nick said: "We'll multiply. That's what's gotta happen."

Mariah Carey is planning to wear a bikini and roll in snow this Christmas. The "All I Want for Christmas" singer, who is married to rapper Nick Cannon, can't wait to celebrate the holiday season by donning skimpy red swimwear while braving the freezing temperatures.

Mariah said: "We go in the hot tub in our Christmas bikinis, then roll in the fresh snow and jump back in the tub. I usually wear a red bikini with a Santa hat."