May 08, 2013 11:00 AM

Looks like Sebastian gives his seal of approval! “Did my hair today and this was my son’s reaction… I think he likes it,” Malin Akerman captioned a photo of her 3-week-old son shared on her Instagram account Tuesday.

The Children’s Hospital star, 34, and husband Roberto Zincone‘s baby boy arrived on April 16.

“My husband and I welcomed our beautiful, healthy baby boy to this world this morning! Biggest joy of my life!!!” she said at the time, adding three days later, “Exhausted … but loving every moment of being a new mom!”

Akerman, who recently guest-starred on Suburgatory, and Zincone married in June 2007.

Courtesy Malin Akerman; Inset: Martin Sloan/iPhoto

— Sarah Michaud

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