WATCH: Waterford stag party serenades London underground station

Without further ado, ladies, and gentleman... David's Stag.

The London underground is known as as place for the weird and wonderful but it’s not every day you come across a 20 Irish men serenade an entire tube station.

David Flynn and his crew popped over to London from Waterford for the weekend, and by chance, came across a piano in Tottenham Court Road tube station.