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Led Zeppelin: Robert Plant reveals archive song finds

23 April 2014 Last updated at 08:01 BST

Legendary rock group Led Zeppelin have released two previously unheard recordings ahead of the reissue of the band's first three albums in June.

Singer Robert Plant told the BBC's Rebecca Jones that the songs - blues classic Keys to Highway, recorded in 1970, and an early version of famous hit, Whole Lotta Love - are "of the time".