For the last couple of years the music world has served us some amazing collaborations between huge artists. Justin Timberlake and Madonna saved the world in four minutes, Lady Gaga and Beyonce made the telephone fiercer than ever, and Justin Bieber and Chris Brown are planning a collection album in the near future. But we don’t think the best music collaborations have been done yet. What about one between Katy Perry and Rihanna, we think it would be a major success! Here are the collaborations we wish would happen in a near future!