Nice pun!

On Wednesday, Dec. 2, Lucy Liu took to Instagram to share a new photo of her three-month-old baby boy, Rockwell — and we can't get over how adorable he looks in his little red onesie!

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When it's your birthday and you're feeling…

A post shared by Lucy Liu (@lucyliu) on

"When it's your birthday and you're feeling…," the Charlie's Angels actress, 47, captioned the sweet snapshot of her son looking rather cozy on a white fur blanket.

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Lucy welcomed Rockwell — her first child — via surrogate on Aug. 27. She announced the birth of her baby boy on Instagram. "Introducing the new little man in my life, my son Rockwell Lloyd Liu. In [love]!" she captioned a photo of herself holding her newborn son.

Click through the gallery below to see more of Hollywood’s cutest kids!