26/05/2017 12:01 PM AEST | Updated 26/05/2017 12:02 PM AEST

Ellie Kemper's Son Will Only Be Soothed By Allison William's Face

She's the baby whisperer.

Travelling with babies can be super difficult, but luckily for the star of "Unbreakable Kimmy Schmidt" a discovery was made for a unique baby-calming cure: Allison Williams' face.

Chatting with Seth Myers on "Late Night" Ellie Kemper told a story about her "spirited" baby, James, on a recent flight.

"James would not be calmed by anything... I was showing him the seat belt buckle and the barf bag and nothing would appease him UNTIL I noticed the airline magazine had the beautiful face of Allison Williams... Her gorgeous face delighted my child and it was the only thing that worked!"

Williams became well-known for her role in HBO's "Girls" alongside Lena Dunham, and more recently in the hugely successful Jordan Peele film "Get Out". But now she's received a new title: "the baby whisperer".

YouTube / NBC

It wasn't just a fluke either, Kemper said while she was flipping through the magazine James wouldn't smile at other pages or ads but as soon as Allison Williams popped up again he'd beam.

"It was the best baby balm I've ever discovered," she said.

She even shared a few more pics of James with a different Allison Williams cover, versus a regular Allison-less book.

YouTube / NBC

So there you have it, if you've got a grumpy baby all you need is a little Allison Williams in your life. Just... maybe avoid her stint starring in "Peter Pan Live!" that might make things worse.

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