The chatter about the possibility of a full-on Led Zeppelin tour (and a performance at Bonnaroo in June) has grown intense since the band's one-off reunion show at London's 02 Arena in December. And Jimmy Page may have actually upped the anticipation levels today by affixing a date to the whole proceeding. He released a statement from Tokyo that said there is no chance that a full tour would begin until September. This undoubtedly has something to do with Robert Plant's prior commitment to a world tour backing his current project with Alison Krauss. That tour is scheduled to begin April 20 in Louisville, Kentucky.