Partnering with a big name in pop culture is all the rage among ready-to-wear and footwear brands. From advertising muse to one-off inspiration, artists are then entrusted with the complete creation of collections, as Adidas did with Kanye West and his Yeezy brand in 2014. But the rapper's slips precipitated the end of this alliance. Here's a look back at this episode in the German group's history.