Hamlet is a Spanish five-piece metal band from Madrid, formed in 1987. They are signed to Maldito Records and have released twelve albums, their most recent being Berlín in 2018. They are considered the pioneers of alternative metal in Spain with their albums Sanatorio de Muñecos (1994) and Revolución 12.111 (1996).

Source: Wikipedia (https://en.wikipedia.org/wiki/Hamlet_(band))