Artist names and their changes:

[bob_32_116]

and heres a general clue for the remaining artists/bands in the list:
there is another artist in the list who also had multiple names prior to their fame.

That's not a great deal of help.

If you are giving clues, maybe you could give the nationalities? Or the years during which they were at their popularity peak?

"The Pioneers" sounds as though they should be an American band with country leanings, so I am going to guess and say it's The Eagles.