Warren has been busy on other projects. He's working on Jones' still unnamed tribute album—a collection of Jones-penned hits covered by current artists. Additionally, he has a number of movie projects in the works, including a film in development with Queen Latifah (Warren arranged the music and produced her Super Bowl performance) and a music-based film with Patti Austin.
Last year, he was also lucky to work with one of his biggest influences, Michael Jackson, albeit posthumously, as co-producer on his last single, "This Is It."
Warren's advice to newcomers? "Observe and learn. You are never too old to learn, there is always an opportunity to learn something new—even when you are an expert."