A wonderful collaboration occurred in Hollywood this week. Jimmy Fallon, Ed Sheeran, and ?The Roots? all performed an interpretation of Sheehan?s song ?Shape of You.? Their performance was a part of Fallon?s ?Classroom Instruments? series on ?The Tonight Show.? The song ?Shape of You? is a single released to advertise Sheehan?s new album ?Divide,? which will be out on March 3. Sheeran had originally written it for Rihanna, but realized she would never sing the lyrics he wrote. Now it is on his album.