PinkandCarey Hartare celebrating 13 years of marriage!

On Tuesday, Hart penned a sweet tribute to his wife on Instagram in honor of their wedding anniversary, alongside a scenic shot of the pair smiling.

“Can’t believe it’s our 13th wedding anniversary. Who would have thought two misfits like us could pull it off!!!” he jokinglywrote in the caption.

Since saying ‘I do’ in 2006, the singer, 39, and her motocross racer husband, 43, have welcomed two children together:daughter Willow, 7, and son Jameson, 2.

Carey Hart/Instagram

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While the pair seems to have a picture-perfect marriage, Pink (born Alecia Moore) previously opened up toThe Guardianabout the ups and downs she’s faced in her relationship with Hart, revealing that it often takes work to maintain their marriage.

“There are moments where I look at [Hart] and he is the most thoughtful, logical, constant … he’s like a rock. He’s a good man. He’s a good dad. He’s just the kind of dad I thought he’d be and then some,” Pinktoldthe U.K. paper.

“And then I’ll look at him and go: ‘I’ve never liked you. There’s nothing I like about you. We have nothing in common. I don’t like any of the s— you like. I don’t ever wanna see you again,'” she added of their relationship.

The couple has weathered their fair share of public drama. In 2008, they announced theirseparation— which fueled her emotional breakup albumFunhouse— but the pairreconciledthe following year.

“Then two weeks later I’m like, ‘Things are going so good, you guys.’ Then you’ll go through times when you haven’t had sex in a year. Is this bed death? Is this the end of it? Do I want him? Does he want me?” Pink continued. “Monogamy is work! But you do the work and it’s good again.”

Carey Hart, Pink and their children.Source: P!NK/Instagram

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Despite having difficult patches in their marriage, Pink recently demonstrated that her love for Hart was unwavering after a fancriticized her husband’s parentingon her Instagram post.

“You sound well informed on the performance of my husband as a father,” she fired back. “Answer me this: how often have you watched him parent? Do you know my children? Are you aware of their development?”

RELATED VIDEO: How Pink and Her Husband Parent Their Two Kids: ‘He’s Always Good Cop’

“Even better: what are your credentials in parenting expertise? Are you a perfect parent? S–t, are you even a parent? A psychologist? A teacher?” the Grammy winner continued.

“God bless your perfect path. I have no interest in that myself,” she finished. “However, do check in from time to time to let us all know what other teachings you may have for us, oh perfect f—ing stranger.”

source: people.com