27 Dresses actress Malin Akerman introduced her adorable son Sebastian to the world via Instagram, Tuesday.

Akerman and husband Robert Zincone welcomed baby Sebastian last month , announcing the news on Twitter. “My husband and I welcomed our beautiful, healthy baby boy to this world this morning! Biggest joy of my life!!! #lovemykid,” she wrote at the time.

Three weeks later, Akerman is introducing her bouncing baby boy in an adorable Instagram post.

“Did my hair today and this was my son's reaction... I think he likes it ;)” she captioned the photo of Sebastian wrapped in a blanket with his lips pursed.

People reports that Akerman and Zincone wed in 2007.

The new mom currently has a handful of projects in the works, including the TV movie Trophy Wife, Hemlock Drive, starring as Linda Lovelace in Inferno: A Linda Lovelace Story, Serpent Girl and a rumored role in the Christopher McDonald directed romance/drama, Wildwood Inn.

image: Instagram