Dude that sucks, I'd say that calls for a good revenge prank on your mates. Seriously though dont let it get you down, it's on to better things(people) from here.

So they hired YOUR band and decided to play YOUR song? How heartless :( Your ex sounds like a raging bitch, you're lucky you weren't the one marrying her if she likes taking low blows like that.

How about I Write Sins Not Tragedies by P!ATD? Seems fitting.

Or "Bitch" by the Rolling Stones.

Oh my god I can't even begin to describe how ****** up that is. I hope that she felt awful and it ruined her wedding, but knowing cheaters, they just don't give a ****. Sorry OP

That's harsh man, too bad. You really must have needed the money to go through with it. Hopefully you didn't have any unresolved feelings for her, if you didn't, not so bad! Either way OP FYL that's got to be a shitty feeling no matter who you are. Btw what asshole band mates how could they not know it was your ex wife!!

you should have told the groom that

kudos for both actually showing up, and not ruining the wedding!

And you actually did??? I feel like even your ex wife would not be ok with that.

I've got friends in low places.