Christina Hendricks reveals it's her hand on 'American Beauty' poster

Christina Hendricks just blew people's minds by sharing that it's her hand featured on the poster for the film, American Beauty.

The Mad Men star shared the "fun fact" on Instagram, explaining that before she made it big, she was a model and sometimes a hand model. That wasn't Hendricks's only shocker. She also revealed the stomach and hand in the poster belong to two different women.

"This is my hand and another model’s stomach," Hendricks shared alongside a photo of the poster.

Celebs were (rightfully) stunned.

"This is important. How come I didn't know this," chimed in Hendricks's former co-star, January Jones.

"What?!?" exclaimed Jessica Simpson.

Busy Philipps had a similar reaction, writing, "Wait.... What!?"

"What else are you hiding from us??" wrote Rachael Leigh Cook.

"IM SHOOK!!!!!!" said Elle Fanning.

"WHOA." commented Alison Brie.

"This is blowing my mind," added Whitney Cummings.

It's unknown who the stomach model is.

Read more from Yahoo Entertainment:

Want daily pop culture news delivered to your inbox? Sign up here for Yahoo Entertainment & Lifestyle’s newsletter.