So Cute!8 Simple Rules Star Amy Davidson Shares a Sweet New Photo of Her Baby Son Lennox

Three months looks good on you, Lennox! Amy Davidson took to Instagram on Thursday, June 2 to share a sweet new photo of her baby son and he's just getting cuter and cuter by the day! "Hey guess what?! I'm three-months-old! High five!" the 8 Simple Rules star captioned the snapshot of Lennox adorably

Three months looks good on you, Lennox!

Amy Davidson took to Instagram on Thursday, June 2 to share a sweet new photo of her baby son — and he's just getting cuter and cuter by the day!

"Hey guess what?! I'm three-months-old! High five!" the 8 Simple Rules star captioned the snapshot of Lennox adorably posing in his three-month-old onesie.

RELATED: You HAVE to Watch This Adorable Video of Amy Davidson's Baby Son Lennox!

The 36-year-old actress and her husband, Kacy Lockwood — who married in 2010 — welcomed Lennox, their first child, in March 2016.

Click through the gallery below to see more of Hollywood's cutest babies!

1 of 42

River Rose Blackstock

Kelly Clarkson and Brandon Blackstock welcomed daughter River Rose in June 2014.

2 of 42

Isaiah Fisher

Carrie Underwood and Mike Fisher welcomed son Isaiah in February 2015.

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Theodore Kushner

Ivanka Trump and Jared Kushner welcomed son Theodore in March 2016.

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Elizabella Bugliari

Alyssa Milano and Dave Bugliari welcomed daughter Elizabella in September 2014.

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Princess Charlotte

Kate Middleton and Prince William welcomed daughter Charlotte in May 2015.

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Rhodes Gilbert Perry

Sara Gilbert and Linda Perry welcomed son Rhodes in March 2015.

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Bowie and Cy Perego-Saldana

Zoe Saldana and Marco Perego welcomed twin sons Bowie and Cy in November 2014.

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Jane Kimmel

Jimmy Kimmel and Molly McNearney welcomed daughter Jane in July 2014.

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Holt Fisher Smith

Tiffani Thiessen and Brady Smith welcomed son Holt in July 2015.

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Otis Sudeikis

Olivia Wilde and Jason Sudeikis welcomed son Otis in April 2014.

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Rockwell Liu

Lucy Liu welcomed son Rockwell in August 2015.

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Evelyn Penn Willis

Bruce Willis and Emma Heming Willis welcomed daughter Evelyn in May 2014.

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Max Zuckerberg

Mark Zuckerberg and Priscilla Chan welcomed daughter Max in November 2015.

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James Lauren

Lauren Bush Lauren and David Lauren welcomed son James in November 2015.

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Georgia James Breault

Christine Lakin and Brandon Breault welcomed daughter Georgia in March 2016.

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Silas Timberlake

Jessica Biel and Justin Timberlake welcomed son Silas in April 2015.

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Wyatt Isabelle Kutcher

Mila Kunis and Ashton Kutcher welcomed daughter Wyatt in October 2014.

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Poppy Louise Hager

Jenna Bush Hager and Henry Hager welcomed daughter Poppy in August 2015.

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Jovan Jovanovic

Daphne Oz and John Jovanovic welcomed son Jovan in October 2015.

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Ava Marie Faustino

The five-month-old daughter of David Faustino and Lindsay Bronson.

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Rafael Baldwin

Alec Baldwin and Hilaria Baldwin welcomed son Rafael in June 2015.

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Lennox Sawyer Lockwood

Amy Davidson and Kacy Lockwood welcomed son Lennox in March 2016.

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Adrian Benjamin Colonomos

Ginger Zee and Ben Aaron welcomed Adrian in December 2015.

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Quinn Sophie Arnold

Tom Arnold and Ashley Groussman welcomed daughter Quinn Sophie in December 2015.

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Charlie Ocean Goldblum

Jeff Goldblum and Emilie Livingston welcomed son Charlie in July 2015.

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Maddox Laurel Boss

Allison Holker and Stephen "tWitch" Boss welcomed son Maddox in March 2016.

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Story Goldberg

Soleil Moon Frye and Jason Goldberg welcomed son Story in May 2016.

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Marlowe Martino

Eva Amurri Martino and Kyle Martino welcomed daughter Marlowe in August 2014.

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Sailor Gardner

Liv Tyler and Dave Gardner welcomed son Sailor in February 2015.

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Ashe Meyers

Seth Meyers and Alexi Ashe welcomed son Ashe in March 2016.

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Ray Ling Song

Lisa Ling and Paul Song welcomed daughter Ray in June 2016.

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Maxima Zuckerberg

Facebook CEO Mark Zuckerberg and his wife, Priscilla Chan, welcomed baby daughter Maxima in November 2015.

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Remington Alexander Blackstock

Kelly Clarkson and husband Brandon Blackstock welcomed baby son Remington in April 2016.

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Lula Rose Gardner

Liv Tyler and Dave Gardner welcomed daughter Lula in July 2016.

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Frederick Easton Klein

Chris Klein and his wife, Laina Rose Klein, welcomed son Frederick in July 2016.

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York Banks Asla

Tyra Banks and her boyfriend, Erik Asla, welcomed son York via surrogate in January 2016.

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River Rocket Oliver

Jamie Oliver and Jools Oliver welcomed Baby No. 5, son River Rocket, in August 2016.

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Alec Shifrin

Sara Haines and her husband, Max Shifrin, welcomed Alec in March 2016.

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Daisy Josephine Sudeikis

Olivia Wilde and her longtime boyfriend, Jason Sudeikis, welcomed their daughter, Daisy, in October 2016.

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Major James Martino

Eva Amurri Martino and her husband, Kyle Martino, welcomed their son, Major, in October 2016.

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Charlotte Clinton Mezvinsky

Chelsea Clinton and Marc Mezvinsky welcomed daughter Charlotte in September 2014.

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Dolly Grace Schlapman

Little Big Town singer Kimberly Schlapman and her husband, Stephen Schlapman, adopted daughter Dolly in January 2017.

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