If you're at the Zeebelt Theater today in The Hague, Netherlands, you can see the first ever Klingon opera performed live on Earth. It's called "u" (which is the Klingon word for "universal" and/or "universe") and deals with the journey of Kahless the Unforgettable.
"After being betrayed by his brother and bearing witness to his father's brutal death, Kahless faces his bitter enemy, the tyrant Molor." We've got a clip of "u" below for you, courtesy of Today.
There's also a bigger, longer version of the clip over on the BBC News site.
If you are still interested in seeing this performance after watching the clip, we have some good news -- tickets are still available.