Congratulations are in order for Jessica Paré and singer boyfriend John Kastner, as the pair welcomed a bouncing baby boy!

The Mad Men star and Canadian musician made the announcement via Instagram with a photo showing the baby being cradled by his big sister, seven-year-old Summer Lee, John’s daughter from a previous relationship. The post also revealed the little boy’s unique name: Blues Anthony Paré Kastner.

jessica pare baby blues
Instagram

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Jessica, 34, is best known for her role as Megan on the hit TV series, which she will be joining once again for the show’s final season.

READ MORE: ‘Mad Men’ Star Jessica Paré is Pregnant!

The couple announced the pregnancy in equally adorable fashion last October, with a cuddly photo of the two standing behind Summer, who was wearing an “I’m going to be a big sister” T-shirt.