But amongst the chaos, one former Man City star's celebration has caught the eyes of fans on social media - and it's not due to him singing an X-rated chant whilst still in full kit at 7:30am.
The Citizens finally shook off their Champions League hoodoo as they beat Inter to lift the Champions League and secure the treble, being the first English side to achieve that feat since Man United in 1999.
Jack Grealish and and his happy teammates then jetted off to Ibiza to carry on the party for ten hours before heading back for the open top parade on Monday.
And the supporters are living it up, too.
That includes ex-Man City forward Darren Huckerby who raised a glass - or more specifically, a beer - to his former club's achievement.
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But it wasn't Huckerby's choice of beverage that left fans stunned.
Posting a snap of him on Twitter by a pool the day after the win, the 47-year-old wrote: "We're got Rodri, Gundo, Foden and Bernardo, Kevin De Bruyne, John Stones!
"Loving the Sunshine in Portugal!"
But despite donning a small pair of swimming trunks, it was Huckerby's rig that fans on Twitter were blown away by.
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Huckerby's washboard abs were on full display in the picture, with his physique matching that of someone who still played 90 minutes every weekend.
Coupled with a deep tan, Huckerby's muscles were on full display in the snap, as he showed off his arm sleeves in a pair of black out sunglasses.
"Yes champ #shape," his former Norwich teammate Leon McKenzie replied to the picture.
Meanwhile, another joked: "Bloody hell Hucks your really letting yourself go there."
With summer in full swing, some fans in the comments even asked Huckerby how he got his eight pack in an effort to look like him,
"I am on a stag soon, where did you buy the plastic ripped muscle suit?" one joked.
"How many sit ups to get that rack?" another said.
Prior to signing for Man City, Huckerby had played in the Champions League himself, scoring against Besiktas in Leeds' 6-0 win in the group stages in 2000.
But it's fair to say Huckerby wouldn't have predicted City would win the whole competition this season and become so successful when he signed for them in December 2000.
The ex-Coventry star played at Maine Road between 2000 and 2003, enduring relegation to the First Division, now known as the Championship, before winning the league to go back up again.
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Huckerby netted 31 goals in 82 appearances for the Citizens before moving on to Norwich and later, San Jose Earthquakes where he announced his retirement in 2009.
But anyone seeing his latest upload would be forgiven for thinking it'd been less than 14 years since he last played a game.