Liv Tyler Is Engaged -- See the Ring!

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This actress is very good at keeping a secret.

Congratulations are in order for Liv Tyler!

The Leftovers star is engaged to her boyfriend, sports agent David Gardner, ET can confirm.

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The two have apparently been engaged since Christmas but have kept the news private.

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Tyler and Gardner started dating in 2014 and welcomed a son, Sailor Gene, six weeks early in February.

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The 38-year-old actress shared a sweet snap of her baby boy's hand holding an anchor pendant to announce his name shortly after his arrival.

Then in August, Tyler showed us our first real close-up of Sailor.

This is the second marriage for both Tyler and Gardner. Tyler was previously married to musician Royston Langdon, with whom she has a 10-year-old son, Milo. Gardner, who is best friends with David Beckham and Kate Moss, was married to English actress Davinia Taylor, who he shares a 7-year-old son, Grey, with.

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Tyler proudly showed off her brood of boys last week to celebrate Gardner's birthday.

We can't wait to see the bride-to-be on her special day! In the meantime, see even more amazing celebrity engagement rings in the video below.