Bovarism is a noun that refers to an exaggerated estimation of oneself.
Madame Bovary was a 19th century novel that featured a character — Madame Bovary — known for her extravagant lifestyle and inflated self-esteem. Our word of the day is best used to describe the tendency to embody these traits.
Musicians can be wonderful people, but let’s be honest. They often have a trace of Bovarism in them. That kind of inflated ego is not unusual in the music industry.