At least two bands: 1) Check http://www.wolfen-metal.de/‎‎ A power metal band from Cologne, Germany 2) Check https://dreamlordrecordings.bandcamp.com/album/wolfen-the-mission‎‎ A psychedelic/kraut-rock band from UK.‎ ‎ 1) WOLFEN are playing their own kind of METAL, created with Power Metal riffing, twin lead guitars and a little bit of NWOAHM. With their powerful rhythmsection their music never sounds bulky. The vocals give the songs the power but also the melodies they need. Read more on Last.fm