"We couldn't be happier to begin our new journey together surrounded by our closest family and friends," the couple told People in a statement, with their rep confirming to the mag that the couple was "married [Monday] evening in an intimate ceremony at their home in Los Angeles."
After reportedly getting engaged right before Christmas, the Annie star and her new hubby quickly said "I do" in front of close friends and family, including, Nicole Richie, Joel Madden, Reese Witherspoon, Samantha Ronson and Gwyneth Paltrow.
Nicole and Reese served as bridesmaids, while Nicole and Joel's son, Sparrow, was the ring bearer for the wedding.
Prior to their big day, the couple entertained family and friends at an intimate rehearsal dinner at their home in Beverly Hills, and the 42-year-old actress also made sure to celebrate her last days as a single woman with a bachelorette party over the weekend.
This is the first marriage for Cameron and the 35-year-old Good Charlotte rocker.