Unarmed – Best of 25th Anniversary is the sixth compilation album by German power metal band Helloween. It is a compilation in celebration of the band's 25th anniversary, which contains re-recorded versions of Helloween songs in an acoustic/symphonic style. It includes a 70-piece Prague Symphony Orchestra performing "The Keeper's Trilogy", a 17-minute medley consisting of the songs "Halloween", "Keeper of the Seven Keys" and "The King for a 1000 Years". Many guest musicians are featured on the tracks. Commenting on the album on 2011, the bass guitarist Markus Grosskopf said: It's just like we've been asked what to do [regarding their 25th anniversary], if we're going to do fine remakes or re-masters, but then sell the old stuff people get at home anyway just a slightly different sound, it wouldn't make any sense to us so we just wanted to give people something new. [...] It was interesting and fun to play a bass like this that you can hear on that record because I never did this. The vocalist Andi Deris, however, panned the album in a 2015 interview, saying he never liked the idea of doing it and that the record company "raped" the band to do it. He commented: From Wikipedia (https://en.wikipedia.org/wiki/Unarmed...) under Creative Commons Attribution CC-BY-SA 3.0 (https://creativecommons.org/licenses/...)