Nearly as much as Metallica and Megadeth, Anthrax were responsible for the emergence of speed and thrash metal. Combining the speed and fury of hardcore punk with the prominent guitars and vocals of heavy metal, they helped create a new subgenre of heavy metal on their early albums. Original guitarists Scott Ian and Dan Spitz were a formidable pair, spitting out lightning-fast riffs and solos that never seemed masturbatory. Unlike Metallica or Megadeth, they had the good sense to temper their often serious music with a healthy dose of humour and realism.