In 2009, Crom composed the score and co-wrote lyrics with Fred M. Caruso for the film "The Big Gay Musical". He composed the score and wrote the lyrics for "Bonnie & Clyde: A Folktale", with a book by his "Urinetown" co-star Hunter Foster. It was presented at the 2009 New York Musical Theatre Festival, where it won awards for Best Music and Most Promising Musical. "Bonnie & Clyde: A Folktale" was workshopped in residency at the Academy for New Musical Theatre, through the ASCAP Foundation Irving Caesar Fund Fellowship, a Producer-Writer Initiative granted through NAMT, the National Alliance for Musical Theatre.