The Annie actress tied the knot with her musician beau at a small ceremony held at their home in Los Angeles on Monday night (5 January).
In a statement to People, the newlyweds said they "couldn't be happier" to start their life together as a married couple.
Cameron and Benji had been the subject of engagement rumours towards the end of last year after Cam was spotted wearing a diamond ring on her engagement finger, but both stayed mum on whether they were true.
Well, now we know they were!
According to reports, guests at their intimate wedding included Benji's twin brother Joel Madden (obvs!) and Joel's wife Nicole Richie. Cameron's close friend and Charlie's Angels co-star Drew Barrymore was also there.
Cameron began dating guitarist and singer Benji in May last year.
The actress stayed mum on her romance during a recent interview with Cosmopolitan, but did speak about what it takes to make a relationship work.
"You have to find someone in the same place as you are. Timing is everything," she said. "If you get into a relationship where you want something the guy doesn't want, it's never gonna work. You're never going to get him to be in that place. No matter how old you are, finding the guy who's in the same place as you are and wants to show up is the only way a relationship works, period."
This is the first marriage for both Cameron, 42, and Benji, 35.
What a way to start the New Year!
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