front man vs prima donna

front man

noun
  • The lead singer in a musical group. 

  • A person acting as the public face of some other, covert group. 

  • striker, attacker, forward. 

prima donna

noun
  • The principal female singer or the leading lady. 

  • A person who considers himself or herself much more important than others, has high expectations of others and becomes angry when his or her standards or demands are not met. 

How often have the words front man and prima donna occurred in a corpus of books? (source: Google Ngram Viewer )