Rishi

"Who wants a tequila shot?" Randi Zuckerberg shouted over the thump of "Baby One More Time," Britney Spears' breakup anthem. It was nearly midnight on a rainy Wednesday in September, and more than a dozen friends gathered by Randi, the older sister of Mark Zuckerberg, a founder of Facebook, were crowding a private room at the Midtown karaoke club Japas 38. "Yay!" cheered the crowd as their host hoisted a carafe of tequila in the air and circled the tables, pouring shots. The air smelled of stale beer and soy sauce.

After salt was licked, plastic cups drained and limes squeezed, she grabbed a microphone and belted out a rousing version of "I Will Survive." In August, Randi Zuckerberg, 29, quit her job at Facebook, where she had been among the first two dozen people hired. Most recently, she was the director of marketing. In its early days, Zuckerberg was a buoyant presence, representing her reticent brother to an eager press. Later, she earned attention (not always favorable ) singing at company functions with a band composed of colleagues.

And she came up with the idea for Facebook Live, the social network's video channel, which has featured interviews conducted by Facebook executives with Oprah Winfrey and President Barack Obama. Now Zuckerberg has started her own business, RtoZ Media, to help companies take advantage of social media. "This is the launch party of Randi Zuckerberg!" she said at the club, beaming.

Zuckerberg, who lives in a rented house in Palo Alto, has ambitions beyond the internet. "I want a talk show," she said two days earlier over drinks at the Mercer Hotel. She also wants to sing on Broadway. And she is interested in philanthropy: while in New York, she conducted live online interviews with participants of the Clinton Global Initiative and worked the red carpet at a UN gala.

Older women who are mentors, Zuckerberg said, have warned her that she must tone down her flamboyant persona, but she refuses to take heed. "This is a new world we live in, and it should be possible for a woman to be taken seriously and still do what she loves," she said. Three weeks after the karaoke night, she spoke at a conference sponsored by the New York Stock Exchange. She then traveled to Warsaw to talk to 2,000 telecom and media executives about social media. And the estate of Michael Jackson hired her to be the host of an online show on the pop star's Facebook page. "Every article written about me now refers to me as Randi Zuckerberg, Mark's sister," she said. "Maybe one day that won't be what people say about me."

Zuckerberg was born in 1982 and grew up in Dobbs Ferry, NY, a Hudson Valley town about 40 minutes from Manhattan. She is older than Mark by two years and has two younger sisters. Early on, her parents signed her up for piano lessons, but she longed to sing. She enrolled at Harvard in 1999 and studied psychology after being turned down by the music department, she said, because her piano skills were lacking. She continued to sing, using the stage name Randi Jayne. In 2002 her brother joined her at college.

Barely has Google+ —the search giant's answer to Facebook— gotten off the ground, that it received a most unexpected 'visit' from Facebook founder Mark Zuckerberg.

Tech site CNET reported that at least three profiles bearing Zuckerberg's name had appeared on Google+, one labeled as "Fake Zuckerberg," and two as "Mark Zuckerberg."

As of Friday, it said that the "fake" Zuckerberg and one of the two "Mark Zuckerberg" profiles appeared to have been short-lived.

However, the "remaining" Zuckerberg profile appeared to be still up, with no posts.

"The second Mark Zuckerberg profile, put up shortly after the first was taken down, is harder to dismiss. The non-smiling profile picture--an apparent cell phone or a Webcam shot--is not easily found elsewhere. A TinEye search turned up only the Zuckerberg Google+ profile image," CNET reported.

CNET also quoted a Google spokesperson as saying that Google does not authenticate users at this time.

"As with many of our products, we rely on our users and the community to report any impersonations. We then review these reports and act accordingly. You can try to determine if someone is who they claim to be by viewing their profile, posts, etc. Or if you know them, you can contact them directly," it quoted the spokesperson as saying.

CNET also said that Facebook has not responded to its requests to verify the second Zuckerberg Google+ profile.

A New York man's alleged contract and e-mails that supposedly gave him 50 percent ownership in Facebook are forgeries, according to a court filing by Facebook CEO Mark Zuckerberg.

Zuckerberg said in a filing today in U.S. District Court in Buffalo, N.Y., that he declared under oath that he did not sign a contract with Paul Ceglia regarding Facebook or write the alleged e-mails regarding the social-networking giant's creation. (Text of the filing is available below.)

"Zuckerberg and Ceglia never discussed Facebook and they never signed a contract concerning Facebook," the filing said. "The contract is a cut-and-paste job, the e-mails are complete fabrications, and this entire lawsuit is a fraud."

Electronics forensics experts were unable to find alleged e-mails supporting Ceglia's claim in Zuckerberg's Harvard account, finding instead e-mails that "contradict Ceglia's made-up story," the filing said. Zuckerberg requests the original contract, e-mails in native form, and inspection of all computers in Ceglia's possession as well as those in his parents' house.

Zuckerberg acknowledged in today's filing that he signed a contract to write code for a Ceglia project called StreetFax but said the contract was "doctored" to make it appear to be about Facebook development.

"Among other things, the column widths and margins are inconsistent, which indicates that the document has been altered and reproduced," the claim said. "Many words and sentences simply make no sense, and the document is riddled with internal inconsistencies and contradictions strongly indicative of fraud."

Ceglia's legal representatives in the matter said they were eager to make the contract and e-mails available to Zuckerberg and Facebook.

"Mr. Ceglia welcomes the opportunity to expedite discovery in this case and disagrees with the opinions within the filing, which have been made by those who have not examined the actual contract at issue in this case or any of the other relevant evidence," reads a statement from Ceglia's law firm, DLA Piper.

Ceglia, of Wellsville, N.Y., claimed in a lawsuit filed last year that he entered into a contract with Zuckerberg in 2003 to design and develop the Web site that would ultimately become Facebook--a company that now has an estimated value of $50 billion.

Ceglia said he hired Zuckerberg through a Craigslist ad to write code for a project called StreetFax and paid Zuckerberg $1,000 for coding work; he also allegedly invested $1,000 in Zuckerberg's The Face Book project, which gave him a 50 percent interest in the company as well as an additional 1 percent interest for every day after January 1, 2004, that The Face Book was delayed.

In a revised complaint filed in April, Ceglia cited more than a dozen e-mails purportedly between himself and Zuckerberg that detail discussions on design, development, business plans, and eventual contract disputes regarding The Face Book.

Last year, Ceglia produced a canceled check that he said proved he paid Zuckerberg $3,000 for some freelance software development work for a project called "The Face Book." Facebook initially said it believed the contract was a "likely" forgery. It has since become more forceful and said it considers it to be an outright fake.