Members of Led Zeppelin are having trouble maintaining their infamous sound, as frontman Robert Plant can no longer manage to hit his high notes. In order to avoid any embarrassing vocal issues, they opted to transfer all music into lower notes.

In addition, a December 10 gig at London’s O2 Arena had to be postponed due to Plants breaking a finger. The gig was to be the bands first in 19 years.http://www.nme.com/news/led-zeppelin/32724