Recently we reported that a new studio album from Paul McCartney was in the works. It’s now come to light that producer Mark Ronson worked with McCartney on three songs for the project. “He understands that you're so nervous to be working with Paul McCartney because everyone is," Ronson said, speaking to the Associated Press. "He gives you a lot of leeway, but then at the end of the day you need to deliver the goods." Ronson went on to say collaborating with the legendary former Beatle was like “taking a master class in production.” "He's done every kind of music,” Ronson explained. “He invented the rule book in several different ways. I don't know if [our stuff] is revolutionary, but they're brilliant songs. I just tried to give him a sound he was looking for." McCartney also announced earlier this week that he’ll launch a world tour beginning June 22, in Warsaw, Poland.