According to Vogue, the collection is a round-up of the kind of clothes Rihanna would like to have in her own wardrobe but couldn't find elsewhere.
"I often walk into stores and I'm like, 'I love this, but I wish it was more like that, or in a different color or in a different fabric' — and now I get to do it," she told Vogue.
It starts at $200 for a t-shirt and goes up to more than $1,200 for a reversible parka.
Fenty's clothing and accessories will run on a six-to-eight-week cycle. It won't have a fashion show, and it will only be sold direct-to-consumer through the store and online.
"There is no six-month wait, you get it when you see it," she told Vogue. "There's no tease. You see it, love it, and want it and that's because I'm like that, I want things right away — I see designers' new season [products] and I'm like, 'Look 11, I need that!'"
LVMH has invested nearly $67 million into the company.
This isn't Rihanna's first foray into fashion, however. She was previously creative director of women's collection and Puma and also runs her own lingerie business, Savage x Fenty.
She also has her own makeup line, Fenty Beauty.