Not only has the iconic front man for Led Zeppelin squashed any plans for a reunification of the amazing band. But now it seems Robert Plant is contemplating retirement from the world of rock and roll.Robert Plant has hinted his new solo album might be his final farewell.The former Led Zeppelin rocker is set to release his latest record 'Lullaby and ... the Ceaseless Roar' on September 8, and he has hinted he might be coming to the end of his career, with the new release feeling like ''some sort of finality''. "Maybe this new album is the end now for me ... [The end] of this musical wanderlust and the wonderful carousel that I've been on. It's like a kaleidoscope; you hold it up to the light, rotate it, and the pieces fall beautifully in different ways, but this record feels different."