Mark Zuckerberg Gets Married

The ceremony took place in Zuckerberg’s backyard in Palo Alto before fewer than 100 guests, who all thought they were there to celebrate his girlfriend's graduation.

Facebook founder and CEO Mark Zuckerberg has updated his status to “married.”

Zuckerberg and 27-year-old Priscilla Chan tied the knot at a small ceremony at his Palo Alto, Calif., home Saturday, capping a busy week for the couple.

On Friday, Zuckerberg took his company public in one of the most anticipated moves in Wall Street history.

The wedding ceremony took place in Zuckerberg’s backyard before fewer than 100 guests, who all thought they were there to celebrate Chan’s graduation.

Chan graduated from medical school at the University of California, San Francisco, on Monday, the same day Zuckerberg turned 28.

A company spokeswoman said Zuckerberg designed the ring featuring “a very simple ruby” that he designed himself.

NBC Bay Area's Monte Francis saw the lead singer of the rock band Green Day, Billie Joe Armstrong, leaving Zuckerberg's house around 8:30 p.m. Armstrong had his guitar in hand.

Guests danced to a variety of songs, including Ciara's "One, Two Step," Michael Jackson's "Rock with You" and "Billie Jean," Katy Perry's "California Gurls" and Bon Jovi's "Livin' on a Prayer."

Neighbors didn't seem to mind the noise.

"Nah it's cool," neighbor Keith Kleiner said. "Everybody likes to party, why shouldn’t Zuckerberg party?"

One of the limo drivers told us he's on duty until 1 a.m. Sunday.

The couple met at Harvard and have been together for more than nine years. No word yet on where the couple is headed for their honeymoon.

The Associated Press contributed to this report.

Contact Us