Listen to Led Zeppelin’s Unreleased ‘Black Dog’

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Led Zeppelin freaks will have a bounty of goodies on their hands when the band re-releases classic albums Led Zeppelin IV and Houses of the Holy on Oct. 28.

But ahead of that release date, fans can get a taste of the rarities that will accompany each album — for instance, here’s an unreleased, alternative take of Led Zeppelin IV opener “Black Dog.”

Read more: www.billboard.com