Justin Bieber is an 'Undercover Maniac' in WeHo

Justin Bieber stays chill in a laid back outfit while making his way inside The Nice Guy on Wednesday evening (January 27) in West Hollywood, Calif.

The 21-year-old “Sorry” singer later exited through a back door where he showed off his “Under Cover Maniac” jacket.

That same night, Justin‘s rumored hookup Kourtney Kardashian was also spotted hitting up The Nice Guy with a friend, but she reportedly didn’t cross paths with Justin.

ICYMI: Justin goes shirtless in his new ads for Calvin Klein!

35+ pics inside of Justin Bieber enjoying a night out…