Diane Keaton is undoubtedly one of this era's real style icons, always timeless and chic in her tailored 'fits complete with the likes of wide belts, trouser pants and blazers.

But nothing screams Diane Keaton fashion like a good big hat.

And she knows it.

The Annie Hall star just iconically roasted her obsession in a hilarious Instagram video featuring a head-to-toe hat.

She captioned it:

"IS MY NEW HAT TOO BIG? BE HONEST..."

While Keaton's joke about her most commonly-associated accessory had the masses in stitches, viewers delivered some stellar punchlines, as well.

@diane_keaton/Instagram

@diane_keaton/Instagram

@diane_keaton/Instagram

@diane_keaton/Instagram

@diane_keaton/Instagram

All in all though, people on Instagram agreed the Book Club star won with her post.

@diane_keaton/Instagram

@diane_keaton/Instagram

@diane_keaton/Instagram

@diane_keaton/Instagram

@diane_keaton/Instagram

@diane_keaton/Instagram

@diane_keaton/Instagram

Yeah, that's internet gold.

Hats off to you, Diane.