From the Facebook event page:

“Join us and Swingin' Denver for an evening of swing dancing, beer releases, and the ugliest sweaters known to man!
Swingin' Denver will be leading FREE dance lessons at 7pm

5:30pm: Holiday beer releases
7:00pm: 30 minute dance lesson
7:30-8:30pm: Something Vinyl Club
8:30pm: Ugly Sweater Competition & Awards”