Metalcore is a broad fusion genre of extreme metal and hardcore punk. The name is a blend of the names of the two genres. Metalcore is distinguished by its emphasis on breakdowns, which are slow, intense passages that are conducive to moshing. Pioneering metalcore bands—such as Earth Crisis and Integrity, both of which had formed before 1990—are described as leaning more toward hardcore, with their style sometimes being called metallic hardcore, whereas later bands—such as Killswitch Engage, All That Remains, As I Lay Dying, Bullet for My Valentine, Parkway Drive and Underoath—are described as leaning more towards metal.