Why They Split: Zeppelin drummer John Bonham died in 1980, causing the band to split. The remaining trio reformed at Live Aid in 1985, an Atlantic Records anniversary concert in 1988 and their induction into the Rock and Roll Hall of Fame in 1995. Despite pleas from his bandmates and fans, Robert Plant has refused all offers of a reunion tour.
Last Performance: In December of 2007 Led Zeppelin performed their first full concert since Bonham died in 1980 at London's 02 Arena in honor of the late Ahmet Ertegun. They spent months rehearsing a stellar two-hour show, but nothing more came of it. Jimmy Page and John Paul Jones were so frustrated with the situation that they auditioned a bunch of singers in 2008 and even looked seriously into a tour without Plant, but wisely canceled the whole thing before it got off the ground.
Odds Of A Reunion: Robert Plant has been extremely clear that he has absolutely no interest in ever fronting Led Zeppelin again, and that he viewed the 02 Arena show as a perfect way to end the band. They could play every stadium in the world and make a billion dollars, but Robert Plant is rich enough and this is almost certainly never going to happen. 10%.