From Kelnginem’s official website:
Growing up on the Klingon starbase Morska, it was no problem for Klenginem - whose real name is Quvar muHwI’ valer - to receive the most different kinds of communication waves, among which also the terran rap-music.
As a communications officer, it was no problem for him to adapt the songs to the klingon music, and then he presented his first try to the warriors of the Dark Vengeance Fleet. To make his pseudonym, he used the name of a famous terran rap-singer, from the “Klingon Eminem” he got the name “Klenginem”.
Klenginem on why he doesn’t want you going to the police:
Next, the “Klenginem-Show” is only run as a hobby, just for fun and produces no financial advantages. The so called performances have only been on private events and parties among friends, and Klenginem did not get any money for what he did.
If anyone still disagrees with anything he or she finds on this website, please contact its administrator before going to police or lawyer. I think there is no problem that we cannot solve ourselves, because - like I said before - this is all just for fun, so there is no money available for legal fights.