At parties as fabulous as the Costume Institute gala, guests don't just show up willy-nilly like at the last house party you hosted. And unless you're like Vogue, we doubt you preapproved your guests' friends' friends who might show up. But that's how the gala works. Anna Wintour gets to yea or nay every person on the list. Sadly, Rachel Zoe, didn't pass muster, according to Fashion Week Daily:

[D]esigners have been submitting their final guests lists for approval. One ubiquitous fashion influencer, however, will be noticeably absent. Rachel Zoe, described by The New York Times' Lynn Hirschberg as having a "hectic, ostentatious, theatrical sort of glamour," was initially invited by Brian Atwood to sit at his Bally table. Now it appears the uber-stylist was disinvited, despite several celebrity clients that she is dressing for the occasion.

"I was invited by Brian Atwood but wasn't planning on going anyway because of my filming schedule and commitments to clients," said Zoe through her spokesman at talent agency Todd Shemarya.

Riiight Rachel. This has nothing to do with your boasting that you're more influential than A-dubs. Or maybe Vogue was afraid she'd show up with the camera crew from her new reality show and try to stage conversations with far more famous guests? We've seen it with our own eyes, and it isn't pretty.

Who's In--and Who's Out--at the Costume Institute Gala [Fashion Week Daily]
Related: How We Offended Stylist–cum–Reality Star Rachel Zoe