Cameron Diaz and Benji Madden wed in private ceremony Monday night

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Cameron Diaz and Benji Madden Are Married!

Cameron Diaz and Benji Madden have tied the knot!

The 42-year-old actress and the 35-year-old musician said their vows at a surprise wedding ceremony held at Diaz's Beverly Hills home on Monday night, Us Weekly reports.

NEWS: Cameron Diaz Set to Marry Benji Madden Tonight

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Cameron Diaz and Benji Madden
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Cameron Diaz and Benji Madden wed in private ceremony Monday night
LOS ANGELES, CA - AUGUST 31: Cameron Diaz, Benji Madden, and Jessie J are seen at LAX. on August 31, 2015 in Los Angeles, California. (Photo by GVK/Bauer-Griffin/GC Images)
LOS ANGELES, CA - JANUARY 27: Benji Madden (L) and Cameron Diaz attend a basketball game between the Washington Wizards and the Los Angeles Lakers at Staples Center on January 27, 2015 in Los Angeles, California. (Photo by Noel Vasquez/GC Images)
LOS ANGELES, CA - MAY 15: (L-R) Musician Benji Madden, author Vicky Vlachonis, and actress Cameron Diaz celebrate the launch of The Body Doesn't Lie by Vicky Vlachonis on May 15, 2014 in Los Angeles, California. (Photo by Jason Kempin/Getty Images for Goop)
Happy Birthday to my Beautiful Wife❤My best friend and Everything else- there's so much I could write. I'm the luckiest guy alive- I get to spend the rest of my life right here. I love this Woman!!❤️Many more Baby!! ❤️ 🎁🎉🎂
SUNRISE, FL - JULY 25: Benji Madden of Good Charlotte and actress Cameron Diaz during the NSYNC Challenge For The Children Celebrity Basketball Game at Office Depot Center in Sunrise, Florida on July 25, 2004. (Photo by Alexander Tamargo/Getty Images)
Thinking bout you❤️❤️❤️ #LuckyMan
(EXCLUSIVE, Premium Rates Apply) Benji Madden and Joel Madden of Good Charlotte, Lance Bass, Beverley Mitchell and Cameron Diaz (Photo by KMazur/WireImage)
LOS ANGELES, CA - JANUARY 27: Benji Madden (L) and Cameron Diaz attend a basketball game between the Washington Wizards and the Los Angeles Lakers at Staples Center on January 27, 2015 in Los Angeles, California. (Photo by Noel Vasquez/GC Images)
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Diaz and Madden have reportedly been seeing each other since May 2014 and got engaged in December, although the couple had never officially confirmed it until now.

According to Us, the private ceremony was held in front of close friends and family, including Reese Witherspoon, Samantha Ronson, and Gwyneth Paltrow.

Diaz's sister Chimene and Drew Berrymore were among the bridesmaids.

NEWS: Cameron Diaz: 'Yes, I Have Been with a Lady'

The wedding's ring bearer was Benji's nephew Sparrow, the son of Benji's twin brother Joel and his wife, Nicole Richie. Richie also served as a bridesmaid.

On Sunday morning, Barrymore threw Diaz a bridal shower. Later that evening Diaz hosted an intimate rehearsal dinner at her home.

Congrats to the happy couple!

How can you not love this woman?!

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Cameron Diaz
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Cameron Diaz and Benji Madden wed in private ceremony Monday night
THE TONIGHT SHOW STARRING JIMMY FALLON -- Episode 0086 -- Pictured: (l-r) Actress Cameron Diaz during an interview with host Jimmy Fallon on July 15, 2014 -- (Photo by: Douglas Gorenstein/NBC/NBCU Photo Bank via Getty Images)
THE TONIGHT SHOW STARRING JIMMY FALLON -- Episode 0086 -- Pictured: (l-r) Actress Cameron Diaz during an interview with host Jimmy Fallon on July 15, 2014 -- (Photo by: Douglas Gorenstein/NBC/NBCU Photo Bank via Getty Images)
THE TONIGHT SHOW STARRING JIMMY FALLON -- Episode 0086 -- Pictured: (l-r) Actress Cameron Diaz during an interview with host Jimmy Fallon on July 15, 2014 -- (Photo by: Douglas Gorenstein/NBC/NBCU Photo Bank via Getty Images)
NEW YORK, NY - JULY 15: Cameron Diaz visits 'The Tonight Show Starring Jimmy Fallon' at Rockefeller Center on July 15, 2014 in New York City. (Photo by Theo Wargo/NBC/Getty Images for 'The Tonight Show Starring Jimmy Fallon')
NEW YORK, NY - JULY 15: Cameron Diaz visits 'The Tonight Show Starring Jimmy Fallon' at Rockefeller Center on July 15, 2014 in New York City. (Photo by Theo Wargo/NBC/Getty Images for 'The Tonight Show Starring Jimmy Fallon')
NEW YORK, NY - JULY 15: Cameron Diaz visits 'The Tonight Show Starring Jimmy Fallon' at Rockefeller Center on July 15, 2014 in New York City. (Photo by Theo Wargo/NBC/Getty Images for 'The Tonight Show Starring Jimmy Fallon')
NEW YORK, NY - JULY 15: Cameron Diaz visits 'The Tonight Show Starring Jimmy Fallon' at Rockefeller Center on July 15, 2014 in New York City. (Photo by Theo Wargo/NBC/Getty Images for 'The Tonight Show Starring Jimmy Fallon')
NEW YORK, NY - JULY 15: Cameron Diaz visits 'The Tonight Show Starring Jimmy Fallon' at Rockefeller Center on July 15, 2014 in New York City. (Photo by Theo Wargo/NBC/Getty Images for 'The Tonight Show Starring Jimmy Fallon')
NEW YORK, NY - JULY 15: Cameron Diaz visits 'The Tonight Show Starring Jimmy Fallon' at Rockefeller Center on July 15, 2014 in New York City. (Photo by Theo Wargo/NBC/Getty Images for 'The Tonight Show Starring Jimmy Fallon')
NEW YORK, NY - JULY 15: Cameron Diaz visits 'The Tonight Show Starring Jimmy Fallon' at Rockefeller Center on July 15, 2014 in New York City. (Photo by Theo Wargo/NBC/Getty Images for 'The Tonight Show Starring Jimmy Fallon')
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