Justin Bieber was kicked out of a Chicago nightclub this week ... when cops determined the 19-year-old pop star was being illegally served alcohol inside the establishment ... TMZ has learned.
It all went down Tuesday night at Bodi nightclub in Chi-town. We've learned ... cops entered the joint after being tipped off that Bieber and his crew were inside the 21+ establishment -- and allegedly boozing.
We've learned ... officials questioned nightclub employees and determined Bieber was, in fact, served alcohol in the club.
Bieber was immediately kicked out of the place and cops delivered a citation to the club honchos for: "Serve/allow person under 21 on premises w/o parent/guardian."
The citation specifically refers to Justin Bieber and his "entourage."
A rep for the Chicago Department of Business Affairs and Consumer Protection tells TMZ, "The ticket was issued by the police to Bodi Nightclub for admitting and knowingly having underage persons in the establishment."