Susan Sarandon posts shirtless throwback snap from 1978 Cannes Film Festival

It's official: Susan Sarandon is the definition of perfection.

The actress, 70, shared a picture of herself in Cannes back in 1978 and we've come to realize that she's absolutely ageless!

A young Susan is photographed chilling -- sans shirt -- on a hotel balcony with only a black blazer, white pants and some fresh New Balance sneakers on. Her gorgeous red tresses are styled similarly to what they look like today, while she showed off her perfect porcelain skin by keeping her makeup simple.

The "Feud" star posted the photo a day after her show-stopping red carpet appearance during the 2017 Cannes Film Festival Opening Gala.

The redhead turned heads in an off-the-shoulder emerald green velvet gown that featured an eye-popping display of her cleavage. Susan was quite a hit on the red carpet as she was photographed talking to a number of famous faces, including Elle Fanning and Bella Hadid.

Susan continues to take Cannes by storm, stepping out on Thursday in a black-and-white frock and her black sunnies, which she wore on last night's red carpet. Check out her sexy look from last night in the slideshow above!