Justin Bieber — Hey NYPD … Dinner’s On Me!

EXCLUSIVE

Justin Bieber came face-to-face with a group of NYPD officers Friday night … and even though they took a picture of his mug — it was only out of appreciation for his generous donation.

Bieber was eating at the Comfort Diner in NYC when he noticed a few officers eating next to him … so when it came time to pay up, Justin coughed up the dough for their tab — around $ 200.

The officers walked over and thanked Bieber for hooking them up … then snapped a pic — which Justin posted on Shots — so they could prove to their family the whole thing really went down.

Making amends with cops … one meal at a time.