Every rocker with a hit song with high notes has to change the song in order to still sing it in concert. Layla, Take on Me, Dream On, Don’t Stop Believin’, etc.

If you watch reaction videos from vocal coaches hearing singers for the first time, you will find that they get nervous about the ways singers are tackling parts of their songs, because there are ways to sing that you can do for twenty years, and ways that you can do it that are good for six. Less if you start doing full concerts instead of bar sets or opening act work.