The Real Housewives sure do know how to party. So when Teresa Giudice, Melissa Gorga, Ramona Singer, and Vicki Gunvalson came out to celebrate Mohegan Sun's 20th anniversary in Connecticut this weekend, we can only imagine what shenanigans they got up to. The ladies looked as fierce as they do during the opening scenes of their respective series when they posed together on the red carpet.

When "Housewives collide," as Vicki writes in the below photo caption, they look incredibly chic coordinating in their LBDs.

Melissa's husband and Teresa's brother Joe Gorga also joined in the fun.

It looked like the Housewives also had a blast rubbing elbows with tons of celebs at the Connecticut casino this weekend, including Chrissy Teigen, John Legend, Brody Jenner, Tyson Beckford, Robin Thicke, and The Bachelorette Joelle "JoJo" Fletcher.

To top it all off, they enjoyed performances by Fergie and LL Cool J, too.

Karen Huger was also in attendance to rep The Real Housewives of Potomac.

As you can see, this was one rare occasion where the Housewives came together and had a drama-free weekend. That's more than we can say for the last time The Real Housewives of New York City and The Real Housewives of Beverly Hills got together.