Amanda Seyfried Pens Sweet Birthday Message to Husband Thomas Sadoski: 'Still Can't Take My Eyes Off You'

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Amanda Seyfried can't stop marveling over her husband, Thomas Sadoski.

The actor turned 41 on Saturday, and in celebration of his special day, Seyfried took to Instagram to show him some extra love.

WATCH: Amanda Seyfried and Thomas Sadoski Are Married!

The Last Word
star posted a photo of the two sitting on top of interactive rocking horses with their dog, Finn, by their side. In the pic, Seyfried is adorably staring at her beau, seemingly in awe of his wildly good looks.

"Still can't take my eyes off you," the 31-year-old actress captioned it. "Happy Birthday to the man of my life."

Seyfried and Sadoski eloped in a private ceremony in March, and welcomed their first child, a baby girl, that same month. Her name has yet to be revealed.

When ET spoke to Seyfried in March, she joked she was "12 months pregnant."

WATCH: Pregnant Amanda Seyfried Has Date Night With Thomas Sadoski

"I'm blown away by her every day," added Sadoski. "She does look about ready to pop. It's a pretty amazing thing. I just get to sort of hang back and watch it all happen. That's the great joy for me, trying to learn as much as I can -- try to stay out of the way and not screw anything up too much."

Hear more in the video below.