Plans for the long-awaited screen adaptation of Erik Larson’s best-selling The Devil in the White City have taken an unusual turn, with the announcement that the paired stories of the 1893 World’s Fair and serial murders will be set to song, with a flock of heavy-hitter musical talent being cast in several lead roles.

While the lead role of H. H. Holmes remains unfilled at this time, many sources are indicating that Keanu Reeves (The Matrix: Resurrections) will fill the serial killer’s shoes. Over in the White City, Ryan Gosling (La La Land) will lend his vocal talents to the role of Director of Works Daniel Burnham. Sir Elton John will play Director of Color Francis Millet, while Taron Egerton (Rocketman) will croon as inventor George Ferris. 2019 Oscar-nominated actress Lady Gaga (A Star Is Born) will enter the role of Bertha Palmer. Rounding out this first round of casting announcements are the “Three Girls in a Flat,” who will be played by June Grass, May Flowers, and April Fewls.