Timothée Chalamet supporting fans calling themselves by his name ...

pulling up to an impromptu look-alike contest in NYC -- and, driving the crowd wild. Here's the deal ..

. an unofficial Chalamet look-alike contest took place in Washington Square Park Sunday, with a massive crowd coming out to watch the spectacle. the moment his look alike realized the actual timothee showed up is one for the books pic.

twitter.com/fma1nRbavb The winner of the contest was supposed to make just $50 ..

. but, it seems participants got a second reward too -- a meeting with the "Dune: Part Two" star. Watch the clip currently going viral on social media .

.. one of the look-alike participants is standing in front of a white balance screen when Tim comes rolling in from the side, wearing a remarkably similar outfit to his counterpart.

It takes the crowd a second to put two and two together here -- there are quite a few Chalamet Charlatans running around, after all -- but, once they do there's a lot of excited cheering and hugging. Chalamet lives in New York City ..

. so, unclear if he knew about the contest in advance or if he heard what was going down and ran over on a whim -- but, either way, a fun moment for some of his biggest fans. there are so many angles 😭 — here’s another video of timothée chalamet at the “timothée chalamet lookalike contest” in washington square park in NYC, today! (via cherry.

bec on tiktok.) pic.twitter.

com/MLpUCCUJwY BTW ...

local outlets say cops ultimatel.