Gui de Siervi

Gui de Siervi is a Brazilian singer, multi-instrumentalist, and teacher known primarily in the Heavy Metal scene and its subgenres. He has participated in several notable bands and projects in the Metal scene, including Vikram, Skyrion, Omega Blast, and Syren. He has been confirmed as a guest vocalist for the upcoming album by the band Excalibur, titled "Gods and Heroes".