Taylor and Stella McCartney released collaborative collection of ready-to-wear and accessories to mark the debut of Taylor's "Lover" album in August 2019.

Discussed in Vogue’s September issue, the partnership came about after Taylor and McCartney met at one of Taylor’s concerts in London. “When I started spending more time in London, Stella and I would go on walks, have cocktails, and talk about life. So when it came time to write this album, I name checked her in one of my songs, and when I played her the album, I said, ‘Should we do something?’” Taylor said.

For McCartney, the opportunity to collaborate with Taylor was a no brainer. “I couldn't believe that my name is in a Taylor Swift song (what?!?) and after Taylor played me the entire album it gave me such incredible inspiration for the collaboration and it really revolved around the music. When Taylor asked me, or even thought to come and do this with me, what I love is how we really complement each other in what we generate creatively together.”

The entire collaboration was presented on August 22, during Taylor’s YouTube Live. Even better: The entire range is produced up to McCartney’s standards of sustainability—meaning no fur or leather products, in addition to eco-aware manufacturing processes. “At Stella McCartney we are so serious in how we manufacture and how responsible we are,” the designer days. “We are always looking at sustainability and not killing animals, it means we have such a serious undertone in the everyday runnings morally of how we conduct ourselves as a brand. So I always have to counter that with having a lightness of heart and have a sense of humor and not make people feel terrible.”