I'm a huge fan of Alien and Predator. Back in 2010 I was watching some fan video edits using Alien/Predator movie footage. However I clearly remember I found a music video of the original 2004 AVP movie with a rock band playing their instruments as some clips from the movie were randomly displayed as most of movie music videos usually do. The band was formed by some men and women, they were singing in an unidentified language (probably german or russian) and there was even a scene of the band turning into Xenomorphs after the screen switched into Predator's thermal vision.
I'm aware of german band Oomph and their song "Wach Auf" which served as Aliens vs Predator: Requiem official theme song in Germany. But the video i just mentioned above was using clips from the 2004 movie, and of course it was a different band. It also looked like a genuine official music video Help me please! I've been looking for that video for more than 10 years
