Chanteuse Alicia Keys and her husband Swizz Beatz, a Harvard business school student, got the gift of a lifetime over the Christmas holiday weekend: a son, Genesis Ali Dean.

By far the most surprising thing about the news that four people have been arrested by the FBI in connection with a 72-page indictment handed down on file-sharing site Megaupload (and its streaming-video sister Megavideo) was learning that rap producer and Alicia Keys husband Swizz Beatz is the company's CEO.…

Jennifer Aniston and her still quite new man go house-hunting. Arnold Schwarzenegger just signs whatever papers are in front of him. Lindsay Lohan partied with the Muscle Milk people at a beach. Today's Gossip Roundup is acting irresponsibly.

The scene: A luxe party at a Manhattan penthouse. Diddy hosts and livestreams video of his beautiful guests, like a model cavorting in a hot tub, surrounded by candles, one increasingly large flame—ohmigod! She's on fire! Everyone panic!

NYU's Tisch School has named Ruff Ryders producer (and Alicia Keys' husband) Swizz Beatz as its "Producer in Residence" for the coming school year. That high tuition buys something at last, kids! He's no DJ Premier, but. Baby steps.

Singer Alicia Keys got hitched to producer Swizz Beatz in Corsica on Saturday in a ceremony performed by Deepak Chopra and attended by Queen Latifah and Bono. Because that's just what you do, when you're rich. [Page 6]

Sandra was in Beverly Hills all week, but nobody got her picture. She should teach seminars to Lindsay Lohan, who got caught partying last night. Alicia Keys is pregnant and engaged. Gary Coleman is in the hospital. TGIFriday gossip.

• Katie Lee, the cookbook author and ex-wife of Billy Joel, is reportedly putting the 4,000-square-foot townhouse at 23 Perry Street that she and Joel once shared—and which she bought from Joel for $3 million after their split last year—on the market. The four-bedroom manse is set to be listed with Dolly Lenz for…

• Theodore Friedman, a former negligence lawyer who was disbarred in 1994, and his wife, former New York Surrogate's Court judge Eve Preminger, have sold their three-bedroom penthouse at 25 Central Park West for $10.05 million. The couple first listed the 2,767-square-foot apartment, which features 900 square feet…

Ashley Dupre leaving WB11's studios on East 42nd Street looking very business-like ... Ashley Olsen smoking a cigarette outside Sant Ambroeus with a friend ... Alicia Keys exiting the Christian Louboutin store on Horatio Street with Swizz Beatz and her bodyguard ... Kate Hudson leaving her townhouse ... Famke…

• Cynthia Nixon and longtime girlfriend Christine Marinoni have gotten engaged. The couple announced the news at the Love, Peace and Marriage Equality rally over the weekend. [OK!, ET]
• Mariah Carey reportedly threw a fit in Cannes on Friday evening when the director of her new movie had the audacity to show up…