The season 4 premiere of The Real Housewives of Beverly Hills gets a cross-over with the return of Vanderpump Rules when the two casts get together for a party thrown by Kyle Richards.

Housewives stars Brandi Glanville, Lisa Vanderpump, Yolanda Foster, and sisters Kim and Kyle Richards are joined by two new cast members: actress Carlton Gebbia and former Miss Puerto Rico, Joyce Giraud de Ohoven.

To celebrate the centennial of Beverly Hills and meet other local business owners, Kyle throws a cocktail party at her home for the city's Chamber of Commerce, according to Wetpaint. She hires Vanderpump's restaurant, SUR, to cater the event and before the celebration begins one of the servers talks back to Vanderpump and is sent home.

See a still photo here from the premiere episode.

Drama continues during the party as well.

Kyle tries to put her differences with Foster aside following tension between them last season when the later chose to side with Glanville and Vanderpump against the Richards sisters. Vanderpump then struggles to keep the peace between Glanville and SUR server Scheana Marie, also known as the girl who had an affair with Glanville's ex-husband, actor Eddie Cibrian.

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When the party is over, SUR staffers Jax, Stassi, Katie, Tom and Scheana go meet up with Kristen but then tension rises among the group. Trying to mend her relationship with the group, Scheana invites everyone to her birthday party, but it only results in catfights.

The new season of Housewives will also feature the cast going to Puerto Rico for a group trip, and the two new stars of the show not getting along so well with all of their cast members. Read more here.

The two-hour, combined premiere of The Real Housewives of Beverly Hills and Vanderpump Rules airs Monday, Nov. 4, at 8 p.m. on Bravo.