Fans of the legendary rock band have speculated there will be a world tour since they reunited for a one-off show last December (2007).

Singer Plant has frequently denied the band is to hit the road for a string of gigs, but rumors the other three members - Jimmy Page, John Paul Jones, and Jason Bonham - have been rehearsing together have sent gossips into a spin. Now the comeback looks to be a step closer to reality, with reports suggesting Tyler has taken over vocal duties during practice sessions in London. - more on this story

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