Keri Rusell has been dating her The Americans co-star Matthew Rhys since late 2013, and now four seasons into their show, the couple has welcomed their first bundle of joy together earlier in May. The pair have been super hush-hush about everything regarding their newborn (no surprise!), but during her appearance on the Today show, the proud new mama has finally revealed her kiddo鈥檚 gender and adorable baby name!

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Host Matt Lauer put Keri on the spot this morning by saying, 鈥淎m I correct in reading, Ms. Russell, that you have not yet revealed the gender of the baby or the baby鈥檚 name?鈥 Keri laughed and said, 鈥淚 guess not, where would I reveal that?鈥 To which Matt had the perfect answer. 鈥淵ou could do it right now!鈥 he said. 鈥淲e had a boy,鈥 Keri said. 鈥淗is name is Sam.鈥 Aww, now that鈥檚 a short and sweet moniker.

Baby Sam joins big sister Willa Lou Deary and big brother River Russell Deary from Keri鈥檚 first marriage and is Matthew鈥檚 first child. And that鈥檚 not all the actress has to say about her new baby. 鈥淗e鈥檚 so good. He鈥檚 big and fat and nice.鈥 Squee! Baby rolls are the best.

What do you think of Keri鈥檚 baby name? Tweet us @BritandCo!

(Photo via Dimitrios Kambouris/Getty)