So honored to be on this crazy ride called life with you,"

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Nick Jonas wrote to his wife, Priyanka Chopra Jonas, on her 40th birthday

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Nick Jonas is still on cloud nine with his wife, Priyanka Chopra Jonas!

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The "Jealous" singer, 29, celebrated her birthday on Monday, praising

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Priyanka as "the jewel of July" in a special carousel of photos uploaded to Instagram.

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He also included a photo of the Unfinished author holding up a sign that read, "Happy Birthday Priyanka, 80's baby!"

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Happiest birthday to my ❤️," Nick captioned the post. "So honored to be on this crazy ride called life with you. I love you. @priyankachopra."

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The couple welcomed their first child together –– a daughter, Malti –– via surrogate in January.

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It is certainly life-changing," Jonas told Entertainment Tonight earlier this

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month of being a father. "[Malti] is amazing. It brings me a lot of joy.

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