Last night saw the release of Justin Bieber's Ghost, his new video featuring none other than Diane Keaton. The acting legend was cast as his grandmother and wore her own clothes, including a rather delicious checked coat. And while her co-star looks dapper in a tuxedo and a fantastic pair of check trousers, it's official: Keaton steals the wardrobe show.
We’ve been down an internet hole of her best outfits through the ages and the results are in: she knows an amazing coat when she sees one. If you’re looking for some winter coat inspo then do yourself a favour and take a look at some of our favourite pictures of Diane Keaton, the woman who loves bowler hats, brogues and wide-leg trousers, and really really good coats.
Diane Keaton Wearing Really Good Coats
![A masterclass in how to wear a camel coat and beret perfectly from 1992](https://images.bauerhosting.com/legacy/media/6160/2b30/9ee6/6042/5918/75a5/GettyImages-106827993.jpg?auto=format&w=1440&q=80)
A masterclass in how to wear a camel coat and beret perfectly from 1992
![An exquisite North Face puffer and nonchalant hand in pocket](https://images.bauerhosting.com/legacy/media/6160/2b29/9ee6/601a/0f18/75a4/GettyImages-1232633767.jpg?auto=format&w=1440&q=80)
An exquisite North Face puffer and nonchalant hand in pocket
![A checked and just-the-right-length coat, expertly paired with Keanu Reeves](https://images.bauerhosting.com/legacy/media/6160/2b32/9ee6/6019/3818/75a6/GettyImages-1205150386.jpg?auto=format&w=1440&q=80)
A checked and just-the-right-length coat, expertly paired with Keanu Reeves
![Accessorising a double-breasted black coat with an ice-cream, perfect](https://images.bauerhosting.com/legacy/media/6160/2b2b/1680/25a9/f533/9fa6/GettyImages-1232130051.jpg?auto=format&w=1440&q=80)
Accessorising a double-breasted black coat with an ice-cream, perfect
![It was the turn of houndstooth and balloon sleeves in 2004](https://images.bauerhosting.com/legacy/media/6160/2b29/54d8/5475/7daf/1456/shutterstock_editorial_443540d.jpg?auto=format&w=1440&q=80)
It was the turn of houndstooth and balloon sleeves in 2004
![Serving excellent leather coat looks since 1985](https://images.bauerhosting.com/legacy/media/6160/2b2f/54d8/5473/c7af/1457/GettyImages-80143659.jpg?auto=format&w=1440&q=80)
Serving excellent leather coat looks since 1985
![A fantastic tonal moment from 2018](https://images.bauerhosting.com/legacy/media/6160/2b2f/1680/2567/1833/9fa7/GettyImages-952864538.jpg?auto=format&w=1440&q=80)
A vision in tonal red carpet dressing in 2018
![Beverly Hill nights alongside Warren Beatty in 1978](https://images.bauerhosting.com/legacy/media/6160/2b31/54d8/5493/b1af/1458/GettyImages-156165138.jpg?auto=format&w=1440&q=80)
Beverly Hill nights alongside Warren Beatty in 1978
![A double-breasted beauty in a check as wide as the belt](https://images.bauerhosting.com/legacy/media/6160/2b32/bfb4/d409/3316/0613/GettyImages-936034200.jpg?auto=format&w=1440&q=80)
A double-breasted beauty in a check as wide as the belt
![Sometimes, a lightweight gingham overcoat and a smile is all that's needed](https://images.bauerhosting.com/legacy/media/6160/2b33/1680/256d/1d33/9fa8/GettyImages-105707755.jpg?auto=format&w=1440&q=80)
Sometimes, a lightweight gingham overcoat and a smile is all that's needed
![Keaton's take on the three-piece suit - a coat, matching trousers and a bow-tie](https://images.bauerhosting.com/legacy/media/6160/339d/bfb4/d4f1/bb16/06a6/GettyImages-104790563.jpg?auto=format&w=1440&q=80)
Keaton's take on the three-piece suit - a coat, matching trousers and a bow-tie
![A full 1980s pattern extravaganza, complete with striped leggings of course](https://images.bauerhosting.com/legacy/media/6160/58a5/54d8/54da/d9af/1679/GettyImages-681722941.jpg?auto=format&w=1440&q=80)