The shindig will be held from 5:30 p.m. to 2 a.m. under a tent in The Bar’s back parking lot. The event kicks off with discounted drinks and giveaway items. Live entertainment featuring DJ Cary “Boe” Kleinhams begins at 9 p.m.

Since opening in 1946, The Bar has been a neighborhood “beer and wine” joint favored by an older crowd of blue-collar workers. However, its clientele changed eight years ago, when owners Richard Dispenzieri, John Donovan and Louis Petrillo acquired a full liquor license and expanded its stock to attract more upscale customers.

Today, The Bar is a hipster hideout where Gables professionals meet for lunch and happy hour, and University of Miami students party on the weekends.

“What we used to be was a place where blue-collar workers, who were ‘cheap beer drinkers,’ hung out,” Dispenzieri said. “Today, we attract a younger, professional crowd.”

Will Vazquez of Coral Gables, customer of The Bar since 1986, has seen firsthand how the establishment’s regulars — including himself — have changed. Once a die-hard Heineken drinker, Vazquez, now a film producer and director, switched his drink of choice to Grey Goose Vodka and cranberry juice.

“Before, it was a very bright place that had an older crowd; now it has become more modern with dimmed, colored lights,” Vazquez said. “I come here often because the staff is friendly, the service has always been good and the food is good. The Bar is one of the few places in the Gables that still has a sense of character, community and history.”

According to Vazquez, filmmakers and artists have been intrigued by the watering hole’s history and ambiance for many years and often stopped there to film scenes or draw paintings of the place. During the 1950s, airline stewardesses on layover from Miami International Airport often gathered there, too.

“The secret to our longtime success is that we remained a neighborhood bar that keeps to tradition, stays with the basics and we didn't become too fancy,” said Domingo Murillo, The Bar’s general manager since 1999. “We have a friendly staff that mingles with friendly customers; it's a place where everyone knows your name.”

The Bar also is the oldest bar in Coral Gables, Dispenzieri said. And posters of beers and liquors that were popular in the 1920s and ’30s hang on the walls next to the wooden, horseshoe-shaped bar. While The Bar has had its share of renovations, its appearance hasn’t changed since it was built 61 years ago.

Besides being a historical locale, The Bar’s big burgers and Belgian beers set it apart from other Gables watering holes. Try the half-pound Bar Burger, served on a toasted Kaiser roll with fries, slaw, pickle, lettuce and tomato, for $7.25 and wash it down with one of the many bottled, Belgium-brewed beers, priced from $7 to $11.

Plus, there’s something going on there every night. Sundays are In the Biz Days, with specials geared toward those who work in the restaurant industry. Mondays feature two-for-one drink specials from 11 p.m. to 1 a.m. Tuesdays are Ladies Nights, with free drinks from 10 p.m. to midnight.

 Wednesdays are Shot Nights. Thursdays feature live DJs and all mixed drinks are served in pints from 10 p.m. to 1 a.m. Fridays offer Ladies Happy Hours, with free drinks from 5:30 to 7:30 p.m. And Saturdays feature live rock music.