'Real Housewives of Orange County' Promises Epic Return With Season 11 Trailer -- Watch!

Parties, costumes, and streaking (...sort of)!

Look who's back!

The first look at season 11 of the Real Housewives of Orange County dropped today, and if the bonkers trailer is any indication, fans are in for an insane season of retro 70's parties, cow-milking, and streaking without the nudity (which is somehow maybe more NSFW?).

Watch the trailer below to see what awaits fans when the show returns on June 20 at 9 p.m. ET/PT on Bravo.

WATCH: 'RHOC' Star Vicki Gunvalson Shares Post-Accident Recovery Photo and Health Update

Of course, the trailer also teases Tamra Judge & Vicki Gunvalson's scary sand dune accident.

ET learned in April that the pair was pretty shaken up by the crash, which happened when the reality stars were filming for the new season in the Glamis, California desert.

WATCH: Tamra Judge & Vicki Gunvalson Hospitalized in Sand Dune Accident

"Tamra was driving the sand buggy. Vicki was in the back seat with [new castmate] Kelly Meza-Dodd," a source close to Vicki told ET. "Tamra was driving at about 65-70 MPH and must have hit something. They flipped five or six times...Vicki is home now, and is incredibly sore and has severe whiplash."

Watch the video below for more.