See Every Bravo Icon Appearing on Watch What Happens Live's 15th Anniversary Special

Get ready for a Clubhouse celebration like you've never seen before, Bravoholics.

E! News can exclusively reveal the star-studded list of celebrities and reality stars set to appear on What Happens Live with Andy Cohen's 15th anniversary special.

Joining host Andy Cohen to commemorate the milestone will be The Real Housewives of Atlanta's Porsha Williams, Married to Medicine star and RHOA alum Phaedra Parks, The Real Housewives of New York City O.G. Luann De Lesseps and fellow RHONY alum Sonja Morgan, The Real Housewives of New Jersey's Teresa Giudice and her daughter Milania Giudice and former Flipping Out star Jeff Lewis.

But that's not all.

Bravo super-fan Jerry O'Connell will also be stopping by while Cohen's parents Evelyn Cohen and Lou Cohen will serve as the night's bartenders during the June 30 episode.

Keep reading for an exclusive first look at the guests' backstage portraits.

WWHL's star-studded guest reveal comes three weeks after the show unveiled a new look in honor of the milestone.

"Fifteen is my new lucky number!" Cohen announced earlier this month in a statement. "I can't wait to celebrate the WWHL legacy. Thank you to Bravo for always having faith in our little late-night show that could—allowing me to ‘go there,' play ridiculous games, host incredible guests and generate endless watercooler talk."

"This is my dream job," he added, "and I hope I never wake up."

WWHL has also been counting down the most epic guests, OMG moments and unforgettable games in the show's history all month long. The celebration will culminate when What Happens Live with Andy Cohen's 15th anniversary special airs on Sunday, June 30, at 9 p.m. on Bravo.

WWHL regularly airs Sundays through Thursdays with all episodes also available to stream next day on Peacock.

(E!, Bravo and Peacock are all part of the NBCUniversal family)

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