By now you’ve probably heard the news that Facebook’s Mark Zuckerberg has wed his girlfriend of nine years, Priscilla Chan.

The couple were married in a surprise backyard wedding. 100 guests were invited to what they thought was Priscilla’s medical school graduation party. Instead, Priscilla walked down the aisle (escorted by their beloved dog, Beast) in a fabulous Claire Pettibone lace wedding dress:

You can find Priscilla’s wedding dress here:

(Top photo of the happy couple via Facebook and the AP)