The singer was at Club Cobra, a well-known point LGBT de North Hollywood, em Los Angeles.
The image ended up on the bar's Instagram, which obviously wasn't going to miss the opportunity to promote itself following the illustrious visit.
According to the website "TMZ", he went to the place accompanied by a bodyguard and ordered a beer.
The security guard at the place, who welcomed him and took a photo with the star, said that there was no public in the place – just the bartender and employees – and believes that Justin didn't know that it was a gay bar.
The singer stayed there from 21pm to 22pm on Saturday (30), leaving before the shows, which start at 23pm.