Sammy Hagar brought a whole new level of songcraft to Van Halen, but before he joined the band in 1985, the original quartet -- Eddie Van Halen, David Lee Roth, Alex Van Halen and Michael Anthony -- released six albums that helped change the way rock 'n' roll sounded.

Even though they've developed some scars over the years, their 1978 self-titled debut still sounds like a major shifting in the rock-god universe.

In addition to being one of the best bands of the past 40 years, Van Halen are one of only five rock artists who have had two of their albums sell more than 10 million copies each.

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