Lin-Manuel Miranda may have an Emmy, three Tonys, three Grammys and a Pulitzer Prize to his credit, but his new role in “Mary Poppins Returns” was challenging even him.

The “Hamilton” composer and star dropped by “The Ellen DeGeneres Show” Tuesday to chat about the hotly anticipated Disney film, which is a sequel to the 1964 classic “Mary Poppins,” starring Julie Andrews and Dick Van Dyke.