Within Temptation is a Dutch symphonic metal band founded in April 1996 by vocalist Sharon den Adel and guitarist Robert Westerholt. They have been classified by critics as gothic metal and symphonic metal, although each album contains other influences outside these genres. Critics have noticed the band's experimentation and musical versatility. In an interview, den Adel said they fell into a symphonic rock genre with various influences. In another interview, den Adel stated that "We consider ourselves more an atmospheric melodic symphonic metal/rock band... In my opinion, we are not a gothic band but we have gothic elements".

Symphonic metal is a cross-generic style designation for the symphonic subsets of heavy metal music subgenres. It is used to denote any metal band that makes use of symphonic or orchestral elements. The style features the heavy drums and guitars of metal with different elements of orchestral classical music, such as symphonic instruments, choirs and sometimes a full orchestra, or just keyboard orchestration.