Depends on the "mastering" software and procedures you use.....

Just use a little more high end EQ... boost slightly in the "above" 5K range where all the harmonics and overtones are located. It should not affect the main vocals but it creates "air" where it needs to be..... I think you'll like the results.

You can find my music at:
www.herbhartley.com
Add nothing that adds nothing to the music.
You can make excuses or you can make progress but not both.

The magic you are looking for is in the work you are avoiding.