In the DS9 episode "Soldiers of the Empire" the crew of the Klingon Bird-of-Prey Rotarran sing a song.
Unfortunately, I don't speak Klingon - what is the translation of that song?
According to Memory Alpha this is the "Warriors Anthem":
Hear! Sons of Kahless.
Hear! Daughters too.
The blood of battle washes cleanThe Warrior brave and true.
We fight, we love, and then we kill.
Our lives burn short and bright,
Then we die with honor and join our fathers in the Black Fleet where we battle forever, battling on through the Eternal fight.
Note that Martok gave a order during the song, which does not seem to be part of it.