Happy belated birthday, Ashlee Simpson!

The "Boyfriend" singer celebrated her big day with husband Evan Ross and her two beautiful kids — and fans couldn't get over how big they've gotten!

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The family-of-four can be seen gathered around the table as a huge sparkler goes off on a slice of Ashlee's birthday cake.

"Happy Birthday to the Most incredible Lady," Evan captioned the candid pic. "I love you with all my heart baby. Im so lucky to have you!! [You're] My everything!!"

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The 32-year-old is mom to seven-year-old son Bronx Mowgli, with ex-husband Pete Wentz, and daughter Jagger Snow, whom she welcomed with Evan in 2015.