Artist to Last-First will parse the text of the chosen tag (Artist, Album Artist, Composer or one of their Sort siblings) of a selection of tracks:
Move the LAST word of the tag to the beginning, eg:
OR Move the FIRST word of the tag to the end, eg:
Then, the newly configured text can be copied back to your choice of Artist, Album Artist, Composer, Sort Artist, Sort Album Artist and/or Sort Composer tag(s).
More information and download is on this page.