Sighting: Justin Bieber enjoys 'Boyz night' out at Ron of Japan

Justin Bieber enjoyed a night out with friends in Chicago Monday – or as he called it, “Boyz night.”

The 18-year-old singer tweeted a photo of himself and his entourage at Ron of Japan in the Gold Coast. And like many world-famous pop stars would, Bieber wore sunglasses during the dinner and opted not to leave through the restaurant’s entrance.

“Justin Bieber leaving ROJ in style!!” according to Ron of Japan’s Twitter page. “Rockstars use the back entrance!”



Apparently NBC football analyst and retired New England Patriot Rodney Harrison was also at Ron of Japan that night, but I’m going to go ahead and assume he wasn’t a part of Bieber's entourage. Bieber is in Chicago to perform at the Allstate Arena Tuesday and Wednesday.

Speaking of pop stars with around 30 million Twitter followers, Lady Gaga tanned at the L.A. Tan location in the Gold Coast Oct. 15 and purchased sunless tanning products. She watched boyfriend Taylor Kinney film NBC's “Chicago Fire” at Cinespace Chicago Film Studios Thursday.