Getting so big!
Jessica Simpson, 35, took to Instagram yesterday remind us once again how adorable her kids are — and we can't believe how much Ace Knute has grown!
RELATED: Jessica Simpson Takes an Adorable Selfie with Maxwell on Instagram
Ace and big sister Maxwell, 3, are no strangers to the camera, regularly posing for their mama. It's obvious the toddler clearly inherited his mom's love of fashion — check out his mini fedora!
See more of the cutest celebrity kids here!
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Shakira's sons, Milan and Sasha.
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Hayden Panettiere and Wladimir Klitschko's daughter, Kaya.
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Rachel Zoe's sons, Skyler and Kaius.
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Sarah Jessica Parker's twin daughters, Marion and Tabitha.
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Beyoncé and Jay Z's daughter, Blue Ivy.
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Drew Barrymore's daughters, Frankie and Olive.
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JWoww's daughter, Meilani, and son, Greyson.
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Michael Phelps' son Boomer
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Ashlee Simpson and Evan Ross' daughter Jagger Snow
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Chris Hemsworth and Elsa Pataky's son and daughter.
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Tamera Mowry's son, Aden.
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Mariah Carey and Nick Cannon's twins, Moroccan and Monroe.
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Olivia Wilde's son, Otis.
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Hilaria and Alec Baldwin's daughter, Carmen.
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Mario Lopez's son, Dominic.
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Tamera Mowry's daughter, Ariah.
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Jessie James Decker's son, Eric.
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Melissa Joan Hart's son, Tucker.
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Naya Rivera's son, Josey Hollis.
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Haylie Duff's daughter, Ryan.
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Tila Tequila's daughter, Isabella.
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Stephen 'tWitch' Boss and Allison Holker's son, Maddox.
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Jessica Simpson's son, Ace.
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Jessica Biel and Justin Timberlake's son, Silas.
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Vin Diesel's daughter, Pauline.
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Jana Kramer's daughter, Jolie.
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Seth Meyers' son, Ashe Olsen.
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Karen O and husband Barnaby Clay's son.
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Emily Maynard's son, Jennings.
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Chontel Duncan's son, Jeremiah.
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Kelly Clarkson's daughter River Rose
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