Johnny Nunez/WireImage

Kanye West will open 21 "Life of Pablo" pop-up stores worldwide this Friday with secret locations in Boston, Philadelphia and New York City. Each temporary shop will carry “Pablo” swag in anticipation of West’s upcoming tour, as well as city-exclusive designs made in partnership with Universal Music’s entertainment merch company, Bravado.

Each location will be open through Sunday and will be heavily branded with Sonos sound systems and exclusively Square payment systems. The reveal of each shop’s address will be staggered so that the store will be, in fact, open for 24-hours a day for the three-day pop-up cycle. So far store locations in Australia, Africa, Asia and Europe have been announced with the remaining 14 in North America TBA.

The pop-up announcement alludes to the sale of T-shirts, jackets, hats and sweatshirts, but no further details have been released. revealed the location-specific tees will feature "[each city's] name spelled out on tees and hoodies with Cali Thornhill DeWitt’s gothic script in a myriad of bold shades reminiscent of the collection West showed at Madison Square Garden in February."

Every Pablo pop-up will be open through Sunday with the final 14 locations to be revealed at later today.