Just yesterday, British GQ's 25th anniversary cover hit the Internet, courtesy of the gracious RiRi. In case you haven't seen it yet, it features Rihanna swathed in snakes, looking like Medusa—a collaborative effort between the celebrity and Damien Hirst. We're just weeks away from Lady Gaga's ARTPOP release, and the cover is the result of the artistic marriage between Gaga and Jeff Koons. To hold us over until November 8, when we can get our hands on the celebrity-designed album, we decided to round up all of The 20 Best Celebrity Design Projects, covering furniture, architecture, fashion and graphic design. It features everyone aforementioned, Pharrell Williams, Brad Pitt, and even some unlikely celebrity designers like Vanilla Ice. Who knew celebrities could have such an eye for design?