Hi Stigmata,

The soundtrack of FIRST BLOOD exists and is printed thru COLOSSEUM SCHALLPLATEN.
Sadly for you DAN's song is the only one sung.
The composer is the same of the score, I mentioned the genius Jerry Goldsmith (Planet of the apes, Patton, Gremlins, Small soldiers, Chinatown, LA Confidential, The Omen, and a very very long list).

I have it and could do a cdr for you next month if you want.

Remeber the rest of the soundtrack is only score tracks ! (Orchestral)

Cheers,
CATMAN