We take a look at four incredible rock albums that became immensely popular despite never being officially released.

Even with Paul Anka in their corner, 80s rockers Ruffian never found a home for their first album—and that broke up the band.

Today would have been Nirvana frontman Kurt Cobain's 58th birthday. To celebrate his legacy, we're looking at some timeless songs.

Nirvana's Nevermind and "Smells Like Teen Spirit" both find their way back to one Billboard chart apiece, while also appearing on at least one other ranking as well.