From m-w.com:



prima donna


Main Entry:
pri·ma don·na Listen to the pronunciation of prima donna
Pronunciation:
\ˌpri-mə-ˈdä-nə, ˌprē-\
Function:
noun
Inflected Form(s):
plural prima donnas
Etymology:
Italian, literally, first lady
Date:
1782

1 : a principal female singer in an opera or concert organization
2 : a vain or undisciplined person who finds it difficult to work under direction or as part of a team



But I gotta say, pre-Madonnas had me giggling.