Helen Mirren and Jane Fonda have proven age is nuttin' but a number as they strutted their stuff for L'Oreal at Paris' Fashion Week.

The cosmetics giant transformed the Champs-Elysees avenue into a dazzling open-air fashion runway for a one-off event on Sunday, starring the two multi-award winning actresses.

Mirren, 72, and Fonda, 79, both looked utterly gorgeous and showed that you can have a blast an any age.

Image: Getty - Helen Mirren

Image: Getty - Jane Fonda

The super-mega-fashion-show-spectacular was staged against the scenic Arc de Triomphe de l’Étoile and other sought-after Hollywood actresses flew in for the occasion.

Looks from Balmain, Sonia Rykiel, Isabel Marant and Off-White — were sent down the runway along with jewels from Chopard, marking an exceptional debut for the beauty brand’s first-ever Paris Fashion Week show.

Too gorgeous!