Jamie-Lynn Sigler Welcomes Baby Boy!

Jamie-Lynn Sigler is a mother once again.

"The Sopranos" star welcomed her second child with hubby Cutter Dykstra, a boy named Jack Adam Dykstra. A rep for Sigler told PEOPLE that Jack was born weighing 8 lbs., 13 oz.

Sigler made the announcement on Instagram, writing, "He’s here. Jack Adam Dykstra we will talk about your tardiness eventually, but for now we’ve got a lot of love to give."

She continued, "Thanks to my besties for helping me laugh and smile and to my husband for just being my rock."

Jack's middle name, Adam, is likely an homage to Sigler's late brother Adam, who passed away in 2014.

Sigler and Dykstra are also parents to 4-year-old son Beau Kyle.