Justin Timberlake, Ryan Reynolds & More Famous Parents Celebrate Father's Day on Social Media

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These photos will make you squeal with delight!

Happy Father's Day!

Justin Timberlake made us squeal this morning when he shared an adorable photo of himself cradling his son Silas.

"FLEXIN' on Fathers Day...#HappyFathersDay to ALL of the Dads out there from the newest member of the Daddy Fraternity!!" the singer wrote on Instagram.

WATCH: Justin Shares First Photo of Silas

Can you handle the sweet sentiment and that adorable little heart on Silas' onesie?! It says "I heart dad!" We literally can't even.

Ryan Reynolds and Blake Lively are also first time parents, and they both got cheeky with silly but sweet messages celebrating fatherhood and their little girl.

PHOTOS: Adorable Celeb Dads


Justin and Ryan aren't the only proud papas excited to celebrate Father's Day. Their fellow Hollywood parents are also sharing family photos and lovely messages:

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