It's that time again... Bravo rounded up more than 30 of its biggest and best stars for the network's annual Summer by Bravo commercial -- and Us Weekly has the exclusive behind-the-scenes photos!

The promo, set to's "Fall Down" featuring Miley Cyrus, was shot over two days in early April in Brooklyn, New York. It features personalities from Bravo staples including The Real Housewives franchise, Watch What Happens Live, and more.

PHOTOS: The biggest Real Housewives fights ever

In one shot from the making-of the star-studded ad, WWHL host and network executive Andy Cohen serves up cocktails on a version of Cohen's shot-ski to fellow Bravolebrities Fredrik Eklund (of Million Dollar Listing New York) and Gail Simmons (of Top Chef). Another photo finds Flipping Out's Jeff Lewis sitting on a giant rock and sipping a martini, as three crew members in the wings shower him with buckets of water.

PHOTOS: Reality TV's breakout stars

Also in the promo? It's a Brad, Brad World's Brad Goreski, Lewis' costars Jenni Pulos and Zoila Chavez, Inside the Actors Studio host James Lipton, Tabatha's Salon Takeover's Tabatha Coffey, Top Chef Masters host Curtis Stone, Atlanta Housewife Kim Zolciak, and Orange County Housewife Gretchen Rossi -- who bonded with New Jersey Housewife Melissa Gorga!

PHOTOS: Former Real Housewives stars

"Gretchen and Melissa were gabbing and bonding over lunch," a source tells Us Weekly of the stars. "Melissa also loved Zoila and thought she was hysterical."

Catch the full Summer by Bravo commercial when it premieres on Monday, May 20, during The Real Housewives of Orange County, which airs at 9 p.m.

This article originally appeared on Summer by Bravo Ad -- See Behind-the-Scenes Pictures!