Los Angeles, California - Days after her reported engagement has come to light, Rebel Wilson has dropped a bundle of joy: she's a new mom! And her newborn's name seems to be pitch perfect.

This new arrival is definitely a rebel in the making!

The 42-year-old star kicked off the week with the announcement that she secretly welcomed a baby girl via surrogate.

On Monday, Wilson shared a sweet snap of her new blessing on Instagram and also revealed her fitting name.

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"Beyond proud to announce the birth of my first child, Royce Lillian, born this past week via surrogate," the Grimbsy actor captioned the post.

Rebel and Royce? Sounds like an alliterative match made in heaven!

"I can't even describe the love I have for her, she’s a beautiful miracle! I am forever grateful to everyone who has been involved, (you know who you are), this has been years in the making."

Wilson, who has spoken about her fertility issues in the past, also paid tribute to her "gorgeous" surrogate, whom she praised for carrying her daughter and birthing her "with such grace and care."

"Thank you for helping me start my own family, it’s an amazing gift. The BEST gift!!" she continued.

"I am ready to give little Roycie all the love imaginable. I am learning quickly…much respect to all the Mums out there! Proud to be in your club."

Wilson's introduction to motherhood comes on the heels of the chatter that she is reportedly getting married to her girlfriend Ramona Agruma.

Though the lovebirds haven't outright confirmed the gossip, the Bridesmaid star was spotted sporting a ring on her finger and apparently talked wedding plans on Halloween.

A brand-new baby and a possible future wedding? One could definitely say that Rebel is off to a pitch perfect start to her new journey.