Depop on Thursday unveiled its collaboration with singer-songwriter Kacey Musgraves for a new Shop Drop and accompanying digital campaign in celebration of her new album, “Middle of Nowhere.” The shop features 20 pieces from Musgraves’ personal wardrobe, which will be dropped in a series of capsules across the upcoming weeks. “Fashion is a way to self-express,” said Musgraves in a statement shared first with WWD. “These are some great pieces that remind me of different chapters in my life and represent different sides of me. I love the idea of passing them along through Depop so someone else can enjoy them and make them part of their own story. I also adore the fact that the sales are supporting a really beautiful cause.” Items include apparel from her “Dry Spell” music video, tours, appearances and everyday life.…