Yesterday (22 April) however, Kourtney switched up her style and ventured out in the US while wearing a VERY casual outfit.
The mum-of-two was pictured in a slouchy pair of grey jogging bottoms and a matching baggy top in Los Angeles.
And is that trainers we see on Kourtney's feet? Err yes, apparently so. This is so not like her!
Kourtney's latest outfit was a far cry from the getup she was rocking on Easter Monday.
While out with younger sister Kim, Kourtney was spotted wearing a chic leather skirt and white blouse, paired with her favourite designer ankle cuff pumps.
Perhaps traipsing around in the £500 Saint Lauren Escarpin beauties have given her sore feet. Or, maybe she was on her way to the gym...?
Whatever the reason for her casual look, this is a very different style statement for Kourtney!
What do you think of Kourtney's dressed down look? Tell us below, as the best comment from across the website each week wins £50!