Pop star Lady Gaga has announced a line of beauty products exclusively for sale on Amazon in a boost to the online retailer’s cosmetics business.

The brand, Haus Laboratories, will launch in September for shoppers in nearly a dozen countries, including the United States, Germany and Japan, Amazon said.

The move underscores how the world’s biggest online retailer is increasing competition with traditional cosmetics sellers like Ulta Beauty and Sephora-parent LVMH, which recently launched a beauty brand by singer Rihanna.