Unforgettable Concerts on Instagram: "When Led Zeppelin performed Good Times Bad Times at the 2007 Celebration Day concert at London’s O2 Arena, it wasn’t a reunion built on memory — it was a reminder of dominance. The song that opened their 1969 debut album returned with the same electric-storm intensity that first separated Zeppelin from every other band of the era. Written by Jimmy Page, Robert Plant, and John Paul Jones, the track fused heavy blues roots with a harder, more aggressive rock s