Kenzo was founded by Japanese designer Kenzo Takada in 1970.
We can only assume she'd landed some big bucks in the mega deal as it was reported this week her ex-husband Kevin Federline is sniffing for some more dosh in a new child support claim. The singer calls the collection "youthful".
Even though it may feel like Britney Spears has been in the spotlight forever, she is still only 36-years-old.
The bright campaign was shot in Paris by Peter Lindbergh and features pieces like a cropped denim jacket, thigh-high lace-up boots, and a sweatshirt and baseball hat stamped with a throwback version of the original Kenzo logo.
For any of you who follow Britney Spears on social media, you'll be well aware of her legendary runway videos, and for those of you that don't, what are you actually doing with your life? It represents the idea of "Icons", a term that certainly defines Spears. Leon calls her a "legend" and that she ranks up there with Madonna and Michael Jackson.
"I think that in many ways, growing up she is also synonymous with denim with me".
Perhaps the photo Britney is getting the most attention for is the full denim look she models for the brand.
The singer teamed up with Kenzo for a shoot that involved some denim - some denim underwear that is.
And then, she acknowledges, the Major Moment: "I once wore a denim dress to an awards show".
Spears told US Vogue. "We were out there and I had really promiscuous clothes on, which felt odd, but, of course, on film it turned out to be really cool".
"It's tricky because as a mother, you don't take as much risk with your style", she continues. She usually sticks to "nightgowns" when she's at home with them.
But to the pop star, it's just a mere memory, one she refers to casually in discussions about her absolute adoration for all things denim. As a mother she admits to holding back "out of fear of embarrassing your kids and out of respect for them".