Dillon will be on hand to greet fans, pop bottles and create some general mayhem inside the club -- just like on the show.
He's scheduled to be on hand from 9 p.m. - 2 a.m., and we'd hazard a guess to say he'll probably hit Cuvee (308 W Erie) after hours.
Enclave is also throwing a "Who's in Your Entourage" contest. Email firstname.lastname@example.org with the names of the people in your entourage, and the largest group to show up between 9-11 p.m. will get a table next to Dillon to party all night long.
On Saturday night, the celeb sightings continue when Stacie Hall, who plays a bartender on "The Hills," will show whether she has any actual real skills when she takes a turn behind the bar. Sounds like a good enough reason for another round.
RSVP here for free admission before 11 or bottle service.
Upload pictures of your own "entourage" to our So Chicago section.