Justin Bieber & Gigi Hadid Attend Kendall Jenner's Birthday Party!

Justin Bieber rocks a green “gangsters” jacket while arriving at The Nice Guy for Kendall Jenner‘s birthday party on Monday night (November 2) in West Hollywood, Calif.

The 21-year-old “Sorry” singer was joined by model Gigi Hadid, Orange is the New Black‘s Ruby Rose, and Being Mary Jane actor Kyle Massey.

PHOTOS: Check out the latest pics of Justin Bieber

The day before, Gigi was spotted running errands and hitting the gym out and about in New York City.

FYI: Justin is wearing a Cloney jacket.

45+ pics inside of Justin Bieber, Gigi Hadid, and more at Kendall Jenner‘s birthday…