everyone who's anyone

Noun

everybody who is anybody (uncountable)

1. (idiomatic) All of the people who are well-known or important, especially those who have prominent social standing.
   • Sir William: I'm convinced that everybody who is anybody has got to buckle to, and save the landmarks left. Unless we're true to our caste, and prepared to work for it, the landed classes are going to go under to this infernal democratic spirit in the air.1912, John Galsworthy, The Eldest Son, act I