Tribute bands or bands/artists making a comeback..any favorites out there??

Back when I was young I had the pleasure to see Led Zeppelin and Queen live in concert. Later I saw Robert Plant and Jimmy Page together. Nothing beats seeing the great musical artists of their era.
Now that I am an old fart, the original bands are gone (mostly) I have seen Zoso some years ago and was invited to see Killer Queen by a young friend discovering Queen's music for the first time. Those guys were good! Anyone out there fans of certain Tribute bands or bands getting back together to tour again.