Shawn Mendes worked up quite a sweat on the stage of Dublin's 3 Arena over the weekend, and he'd hoped to quench at a nearby bar -- but a doorman turned him away for being under 21.
Shawn headed to the Bruxelles pub after the show -- and had a gatekeeper check his ID and send him packing. Bystanders filming the whole scene say the singer seemed miffed, but didn't raise a stink -- and headed to a McDonald's down the road, where he hung with fans.
For the record, the legal drinking age in Ireland is 18, but a lot of clubs have 21-and-over rules to keep rowdier young folks outside the velvet rope.
Here's the video: