'Watch What Happens Live' Celebrates 5 Years With Special Guests Nene Leakes, Martha Stewart & Jeff Lewis

Andy Cohen celebrated five years of Watch What Happens Live on Thursday night with some very special guests, and RadarOnline.com has all the highlights.

Cohen's pal and Flipping Out star Jeff Lewis started by roasting the Bravo exec for an excruciating 30 seconds before the infamous doorbell rang and it was none other than the larger-than-life Real Housewives of Atlanta star Nene Leakes.

Leakes has been on the show a whopping 27 times and took the opportunity to dish on Cohen's "shadiest moment."

"You're a shady queen, honey," Leakes says.

But the tables quickly turned when Leakes and Cohen decided Lewis is actually the shadiest of them all.

It wasn't all laughs though, because Cohen took a moment to ask Leakes her thoughts on Apollo Nida's guilty verdict and jail sentencing of eight years.

"I feel bad," she said. "I know he committed a crime and I know all of that, but I feel bad because I really like Apollo."

"I've talked to Phaedra," she revealed. "But I didn't talk to her about that. That's kind of uncomfortable."

Ding, dong! Time for another special guest.

Best OMG Moment nominee Martha Stewart visited the set to collect the award she felt was rightfully hers when she lost for her butt slap given to Cohen.

As RadarOnline.com previously reported, it looks like a shift in Cohen's job duties and title last fall has resulted in a downsized office for the show host.

Cohen stepped down from his post as Executive Vice President of Development and Talent to focus instead on WWHL where he signed a two-year deal keeping his executive producer title on all the Housewives franchise shows.