Aerosmith rocker Steven Tyler has confirmed reports that bandmate Joe Perry is back in hospital undergoing another round of knee surgery.

Aerosmith have been forced to cancel a festival appearance in Venezuela next month after guitarist Perry fractured his knee during rehearsals.

Tyler said; "Playing Venezuela was my idea of a perfect way to start the New Year. But, having heard Joe had to revisit the hospital this month, the band are truly disappointed we can’t be in Caracas, and we hope to see everyone there soon."

The surgery will correct unforeseen complications from a previous surgery on the same knee.

In March 2008, Perry underwent total knee replacement surgery - an operation he put off for two years so that he could fulfil the band’s live commitments.