In what is being billed as the first authentic Klingon opera on earth, the Zeebelt theatre in the Hague will host it from Sept. 9-12.

The opera, while attracting Star Trek fans from around the world, also invited some honoured guests. On April 18, a radio message was broadcast to the assumed location of Qo'nos, the Klingon home planet, approximately nine light years away.

At least four responses from earth-bound Klingons have been posted to YouTube, promising to attend the event.

The title – u - is roughly translated to mean universe, or universal.

"Klingon opera uses the principle of musical combat," a section of the opera's website reads. "Beauty in Klingon music comes from the impact of two opposing forces. To quote a well known Klingon proverb qa’ wIje 'meH masuv or 'We fight to enrich the spirit.’

"The Klingon orchestra is made up of various indigenous Klingon instruments, some that have never been heard on earth before."

The opera took three years to write and the project is spearheaded by the KlingonTerranResearchEnsemble, a group that actively researches Klingon culture and historic documents.