Pregnant Jessica Simpson Is Sad About 5-Year-Old Son Ace's 'Short' Haircut: 'It Broke My Heart'

In a Wednesday Instagram post, third-time mom-to-be Jessica Simpson lamented the absence of her 5-year-old "little man" Ace's long locks

Ace Knute is growing up so fast — and he’s got the ‘do to match.

Jessica Simpson‘s 5-year-old son is quite the suave youngster in a black-and-white photo the singer shared to Instagram Wednesday, taken while Ace sits in the barber’s chair following his chop.

Offering a wide grin to the camera, the adorable little boy sports a style much different than his usual longer blond locks, spiked up and to the side to finish the look.

Neilson Barnard/Getty Images; Jessica Simpson/Instagram

“He really wanted short hair. It broke my heart a little, but we did it!! My little man 💚 #ACEKNUTE,” Simpson, 38, captioned the cute snapshot.

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This isn’t the first time Simpson has shown emotion over her son’s changing look. In September 2017, the singer, actress and fashion designer gave her followers a peek at Ace’s first-ever haircut at the age of 4.

The little boy’s signature shoulder-length blond locks had been sheared to reveal a shorter, yet still adorably shaggy style as the little guy waded in the water in front of a stunning mountainous landscape.

“First haircut ✔️ (Thanks @jessieholiday for making my stud look all grown up 😢) #ACEKNUTE,” the proud mama captioned the memory.<a href="" data-inlink="true">Jessica Simpson</a>/Instagram
Jessica Simpson/Instagram

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While Ace is the baby of Simpson and husband Eric Johnson‘s family for now, he’ll soon be a big brother when his little sister arrives — and in the meantime, he and sister Maxwell “Maxi” Drew, 6½, have some questions for their pregnant mama.

“They want to know every detail — like how milk comes out of Mommy, how the baby will actually get here and if my belly button is a speaker to communicate with the baby,” Simpson explained to PEOPLE exclusively in October, choosing just a few of her kids’ silly inquiries.

The soon-to-be mother of three added that she and Johnson, 39, “are constantly cracking up and trying to figure out how to be honest … but not traumatize them or the friends and teachers we know they are sharing every detail with!”

And looks like Ace and Maxwell will get a little baby practice in ahead of their little sister’s arrival — the siblings were gifted Shih Tzu puppies for Christmas. “Santa’s Nice List!” Simpson captioned a photo of her kids with their new dogs.

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