What goes on in Vegas most certainly will NOT stay in Vegas here!
Watch it go down (below)!!!
We doubt their riff runs that deep!!
As we told you last week, the Late Night host committed quite the controversial faux pas during Jess & JT's wedding!
Now Jimmy Fallon is worried their relationship might be sullied for good!
OK, maybe he isn't that worried, LOLz!!
"I don't know if I'm going to be invited back to the anniversary dinner. I did stand up and start yelling some stuff during his speech during his wedding, but you know? That's why you invite me to the wedding."
Oh, is that why? Ha!!
"Spread the word: You do not want me at your wedding."
Do not invite Jimmy to UR weddings, funerals, or Bat Mitzvahs — consider the word spread!!
[Image via NBC.]