Holy PDA!

Cameron Diaz and her husband Benji Madden aren't exactly known for their public displays of affection, but that all changed when the actress declared how proud she is of her hubby's recent accomplishments.

In a super rare Instagram post about her marriage, Cameron, 43, positively gushed about her husband Benji, 37, whose band Good Charlotte released Youth Authority, their first album in six years.

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"One of my favorite things about being married, is how much pride I take in my husband @benjaminmadden. He makes me proud everyday," the Bad Teacher star wrote. "One day it might be how generous and giving, another how gentle and thoughtful. Or when he is fiercely protective of the people he loves and cares about… And everyday single day (sic) I am so incredibly proud of his integrity as a human being."

cameron diaz benji madden getty images

Photo Credit: Getty Images

"But TODAY what I'm most proud of is his talent… his gift… Today his band @goodcharlotteband released their first album in 6 years #YouthAuthority," she continued.

"I wish that everyone could write music to express their pain… their fears… their hopes and dreams. Baby you amaze me… CONGRATS!!" she finished the heartfelt message.

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One of my favorite things about being married, is how much pride I take in my husband @benjaminmadden… He makes me proud everyday.. One day it might be how generous and giving, another how gentle and thoughtful. Or when he is fiercely protective of the people he loves and cares about… And everyday single day I am so incredibly proud of his integrity as a human being.. But TODAY what I'm most proud of is his talent… his gift…. Today his band @goodcharlotteband released their first album in 6 years #YouthAuthority .. What makes me even more proud is that he has released it on his own independent label MDDN… And it is so damn GOOOOOOOOD… Its so full of love and hope and truth… about forging and holding onto love… I wish that everyone could write music to express their pain.. their fears… their hopes and dreams. Baby you amaze me… CONGRATS!! @goodcharloteband @mddnco #youthauthority #proud http://apple.co/YouthAuthority

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Cameron isn't the only one in this relationship who has been more public about their love than usual. Benji raved about his wife's "modern" feminism in an interview earlier this week.

"I'm extremely proud of what she uses her platform," Benji said. "She's a modern day feminist — she wanted to change the conversation that's being had about women and aging."

The famous couple got married in January 2015 after a year of dating. Cameron has gone on record saying, "Nothing matters now that I have my husband."

It's not hard to see why these two are perfect for each other. They're clearly each other's biggest fans!