Just saw Jason Bonham's Led Zeppelin Experience last night (in Virginia/USA). Gotta say they were remarkably good. If you closed your eyes and listened, you would have thought you were seeing the real thing 40 years ago. If you opened your eyes, you obviously would see that the lead singer is not Robert Plant, given that he is bald!
They were followed by Whitesnake. Obviously great musicians, but they were incredibly loud, and most of their stuff sounded like pedestrian hair metal. David Coverdale can still sing though.
Finished the night with Foreigner. Amazing performance by these guys! Mick Jones looks like your kind old grandfather, but the guy can still play, and after seeing the band, you realize just how many great songs Jones wrote.