Andy Cohen on WhoSay

In preparation for Wednesday’s “Watch What Happens Live All-Star Party” extravaganza, host and Bravo executive Andy Cohen has been posting photos with various Bravo celebrities — like the one above — with all sorts of show worlds colliding.

“OMG it’s #wwhlallstars phun w/ @PhaedraParks @thejoshaltman @CarolineManzo and @fabioviviani,” he posted to his WhoSay account with the pic of himself with stars from “The Real Housewives of Atlanta,” “Top Chef,” “Million Dollar Listing” and “The Real Housewives of New Jersey.”

The one-hour special episode will feature 35 Bravolebrities — including Kathy Griffin, Padma Lakshmi, Tom Colicchio, Bethenny Frankel, Curtis Stone, Cat Cora, Jeff Lewis, Jenni Pulos, Gail Simmons, Tabatha Coffey, Zoila Chavez and casts from all “The Real Housewives” franchises — together on one stage for the first time chatting and playing Cohen’s notorious games — and even singing from some of “The Real Housewives.”

Viewers will also get a sneak peek of some of Bravo’s new series and will meet the new women joining the cast of “The Real Housewives of New York City.”

The “Watch What Happens Live All-Star Party” starts at 11 p.m. on Bravo.

Who are you most excited to see on Wednesday’s show?

Posted by:Jennifer Harper