Quick quiz: Pick the odd one out.
A) Kendall Jenner, the face of Calvin Klein Denim;
B) Hailey Baldwin, the face of Topshop Denim;
C) Karlie Kloss, the face of Express Denim;
D) Sarah Jessica Parker the face of Jordache Denim.
If you said A) Hailey Baldwin because her parents are real celebrities you're funny – but wrong.
It’s SJP. She’s 50. Denim labels usually hunt the young. Jenner is 19, Baldwin 18 and Kloss 23 (she's getting long in the tooth). And if you can remember back that far, Brooke Shields was 15 years old when she whispered to the camera "nothing comes between me and my Calvins". There's something about the pairing of rough denim with fresh faces that marketers find irresistible.
But fashion icon Sarah Jessica Parker has bucked the trend for having models younger than the cotton and six percent nylon they're wearing and fronted a campaign for Jordache, an American clothing company popular in the late 70s and early 80s.
SJP wore their jeans the first time around and she's back in them again. And Jordache is lucky to have her.
This is SJP. A woman who dresses in two states: Met Gala who-doesn't-love-a-Chinese-flame-Haute-Couture-head-piece-worked-back-with-a-poppy-flower-cape-ensemble or Manhattan school-run chic - with jeans being her favoured item.
Her downtown casual look; the way she cuffs, layers, her shoe choice, the size of her take-away coffee is scrutinised just as much as the OTT gowns of opening nights. If there wasn't already a 'J' in there, denim would be her middle name.
When it comes to this latest campaign look past the airbrushing. Look past the cat poses. I know it's been said "she's a smart, successful woman why is she bending over a table like that"? Because it's a jeans campaign. I know she's 50, but what do you want her to do? Have the campaign shot around her playing Sudoku and shopping for a hearing aid?