There are some strange things in the poker world and perhaps none so bizarre as this rendition of Chocolate Rain by Dave "Devilfish" Ulliott! It's a reworking of the original by TayZonday - and if you start looking round YouTube there's also a version by Chad Vadar!
If you're not familiar with Chocolate Rain or Devilfish the video might well go over your head, but it's a pretty good attempt - and you can't knock any song that contains the legend "let the dealer wave his magic wand" and "never underestimate the fish, yeah".
However you might be better off heading straight on over to Devilfish Poker and joining in the fun there! Thankfully he doesn't sing too often.