He is the creative director of Louis Vuitton.
I think they're either doing a photoshoot for LV or LV is creating the Revival Tour outfits for Selena!
edit:
Also working on the REVIVAL Tour is Karl Lagerfeld - head designer and creative director of the fashion house Chanel as well as the Italian house Fendi! http://extratv.com/2016/04/28/selena...-taylor-swift/
“It’s incredible because I’m in such a different place in my life… It’s crazy because now I get to collaborate with designers that I’ve aspired to work with and all of the looks are so distinct and beautiful,” she continued. “I can’t wait for people to see them because they’re very different. Every single look has a feel to it and it takes you to a different place… I think people are really going to like the wardrobe.”
Gomez was particularly taken by one ensemble designed by Karl Lagerfeld. “That was one where I put on the actual costume when it was done and I was just completely blown away,” she said. “It makes me feel so badass. It’s the best feeling in the world.”