Hydra by Within Temptation

Hydra is the sixth studio album by Dutch symphonic metal band Within Temptation. It was released on January 31, 2014 in Europe and on February 4, 2014 in North America. The album contains guest appearances by singer Howard Jones (ex-Killswitch Engage), rapper Xzibit, metal vocalist Tarja Turunen (ex-Nightwish) and alternative rock singer Dave Pirner (Soul Asylum). The first single, "Paradise (What About Us?)", was released on September 27, 2013, and featured Turunen as guest vocalist. The second single, "Dangerous", was released on December 20, in which Jones provided the male vocals.This is the first album by Within Temptation to be recorded with three guitarists, with Stefan Helleblad making his Within Temptation studio debut on Hydra since his addition to the band shortly after the release of The Unforgiving in 2011. Hydra is also the first Within Temptation album to feature Robert Westerholt's growling techniques since the band's debut album, Enter in 1997.