Today, Ghostlight Records releases the original cast album of the world premiere musical The Fortress of Solitude both online and in stores. Produced by The Public Theater, the show is based on Jonathan Lethem’s best-selling novel of the same name. The score features sounds of soul, funk, punk and rap. In this exclusive peek into the recording studio, cast members run through "Superman/Sidekick." Music and lyrics are by Michael Friedman; book is by Itamar Moses. The production was conceived and directed by Daniel Aukin. A concert event will be held April 13 at Joe's Pub to celebrate the release. To order the album, visit www.sh-k-boom.com.