Removing Genres in iTunes?

Anyone know how to do it?
I mistakenly misspelled some genres and now I'm stuck w/ them.

 

I hope I'm understanding your question.

Right click on any song, or select multiple songs and right click. Select "Get Info ". Then select the "Info" tag. From the genre drop down menu (on the bottom ) select which ever genre you want (none is in the drop down selection).

Hope this is what you wanted

 

I understand what you are saying, though that's not it.
The problem is the drop down menu of genres has some listings that are mispelled and I want to delete them from the "genre" list, but don't know how, or if it's possible.