 In his absence it became clear that the opera needed a big romantic ballad, and Cellier's publisher Chappell suggested using one of his existing songs, "Old Dreams", which with new words as "Queen of my Heart" was interpolated into the piece and became a huge success.The sheet music sold over 40,000 copies, and the popularity of the song saved the opera from failure.The piece opened at the Gaiety Theatre on 25 September 1886.