#235 Metallica, 'Metallica (The Black Album)' (1991)

For the casual listener, one who might be looking to dip a toe into metal but not jump in all the way, this would be the gateway album. On their fifth album, Metallica slowed things down a bit from their signature thrash metal sounds offering a record of Heavy Metal more subdued than the sound we had become accustomed to and a sound that was more commercial.