Ireland have beaten the All Blacks in Chicago, and social media is going nearly as mad as the Irish fans at Soldier Field stadium.
The hashtag #IREvNZL is a top trending topic on Twitter, and everyone from comedians, golf stars and former rugby players are joining in.
Top Irish golfer Rory McIlroy led with an incomprehensible tweet that summed up how many Ireland fans were feeling - speechless:
Munster Rugby tweeted: "What a time to be Irish.... What a moment! Enjoy every minute of it."
The officical Irish Rugby Twitter account said: "Made a note in the diary today. Simply says...YES! #TeamOfUs #shouldertoshoulder"
This spoof account of the Irish President said Ireland centre Robbie Henshaw should be promoted to vice-president of the nation.
This tweet summed up the nail biting end to the game, when the All Blacks came fighting back.
Daymon Tuka said: "IRELAND CALL HAS FINALLY BEEN ANSWERED! LOVE THE GAME THEY PLAY IN HEAVEN!#IREvNZL"
While Brendan Dunne said what many others are saying - does the win make Ireland unofficial world champions:
"So that makes ireland unofficial world champions...of course it does. #IREvNZL," he posted
But it wasn't so much fun for the All Blacks fans. One likened the result to when the hero of your favourite movie "dies at the end":
This New Zealand fan's not holding a grudge though:
Tweeting under the handle @nakiwa22 said: "Well done Ireland, enjoy the win. It won't happen again in you lifetime."
Dan Carter has posted this picture of him with his Racing 98 teammate and former Ireland fly-half Ronan O'Gara:
O'Gara had already posted that he wished he was with his fellow boys in green in Chicago celebrating:
"Oh to be an Irish rugby player today.. what a feeling..ye are some warriors..get up ye boyos.. gutted to be missing the session in Chicago," he tweeted.
And the win has already caused strife in this household, where a wedding could be in jeopardy.
User Laura_M8 said: "Brother is marrying a New Zealander in December! Mother of the bride just sent this to my mother."
The post included a screen shot of a text conversation between said mother of the bride and her mother saying "the wedding is off... Steve has revoked his permission".
One issue seemed harder to agree on than most - how big the crowd was.