New 'Mary Poppins Returns' Trailer Gives Sneak Peek at Lin-Manuel Miranda's Big Song!

The highly anticipated movie musical Mary Poppins Returns is one month away, but you can get a sneak peek at the new music in this sneak peek!

Emily Blunt is playing the title character in the new film with Hamilton star Lin-Manuel Miranda as Jack the lamplighter.

In the new sneak peek, we get to hear a preview of Lin-Manuel singing “Trip a Little Light Fantastic,” his big song in the film.

New character posters have been released featuring Emily as Mary, Lin-Manuel as Jack, Meryl Streep as Topsy, Colin Firth as William Weatherall Wilkins, and Julie Walters as Ellen.

Mary Poppins Returns will hit theaters on December 19.