New Lead Singer...Past History

I got to thinking about well-known bands changing their lead vocalist. Sure...it's happened many times in history, but, how many times has the change been met with success. For the record, my definition of success is selling the same number of albums/cd's, charting on the US charts, and actually still being recognized by the music industry as the band they once were. Here are the only bands I can think of who went on to have the same or more success than they had with the previous lead singer:
Van Halen - 5150 was their first cd with Hagar, and was their most successful album ever (for the record, it's still my favorite VH cd)
Genesis - I believe Phil Collins actually brought them more success than they had with Peter Gabriel at the helm
Survivor - This is a tricky one. Sure, they had a monster hit with "Eye of the Tiger", thanks to Rocky III. That said, they were a completely unknown band prior to "Eye of the Tiger", and therefore weren't established so when the change was made from Bickler to Jimi Jamison, I'm not sure anyone really noticed. That said, they were still far more successful with Jamison at the helm.
Chicago - They had only one hit, after Peter Cetera left the band, with "Look Away" and then faded into obscurity, so I would have to say that they were FAR more successful with Cetera at the helm.
Journey - Not sure we even need to discuss this one. There was the Perry era, and then everyone stopped noticing!
Does anyone know of any other bands who changed their lead singer with the same or more success, commercially speaking???
John from Boston
Van Halen - 5150 was their first cd with Hagar, and was their most successful album ever (for the record, it's still my favorite VH cd)
Genesis - I believe Phil Collins actually brought them more success than they had with Peter Gabriel at the helm
Survivor - This is a tricky one. Sure, they had a monster hit with "Eye of the Tiger", thanks to Rocky III. That said, they were a completely unknown band prior to "Eye of the Tiger", and therefore weren't established so when the change was made from Bickler to Jimi Jamison, I'm not sure anyone really noticed. That said, they were still far more successful with Jamison at the helm.
Chicago - They had only one hit, after Peter Cetera left the band, with "Look Away" and then faded into obscurity, so I would have to say that they were FAR more successful with Cetera at the helm.
Journey - Not sure we even need to discuss this one. There was the Perry era, and then everyone stopped noticing!
Does anyone know of any other bands who changed their lead singer with the same or more success, commercially speaking???
John from Boston