The 'Roar' singer stayed toasty in her faux fur number as she left the Roundhouse in London last night (30 September) after performing at the iTunes Festival.
Along with a pretty pink coat, a cream fluffy cover-up is top of our shopping list this season.
Katy went for maximum cosiness by wearing hers buttoned to the top, adding fishnet tights and chunky buckled boots.
And she seemed to be buzzing after her performance, flashing a mega-watt smile while looking smoking hot with vampy red lips and fluttery lashes.
Want to get the look? We're loving this Teddy Fur Pea Coat, £79 from Topshop.
Just be warned - it's so cuddly, you won't want to take it off!
What do you think of Katy's coat? Let us know by commenting below as the best comment across the site each week wins £50!
Watch Katy Perry's music video for 'Roar' below: