As soon as the full-time whistle blew after PSG’s title-clinching 1-0 victory over Lyon, thousands of the newly-crowned champions’ supporters poured from bars and homes on to the streets.
The elated fans – some who had waited 19 years to be French champions, others who were born after the club's last title – congregated at the iconic Champs Elysées to express their joy.
The boisterous crowds chanted, waved flags and lit flares, stopping traffic at times.
Video: Jerome Alonzo/Youtube
For his part, the French capital’s mayor, Bertrand Delanöe described himself as “proud” of PSG, labelling them “one of the great European football teams.”
The Ligue 1 trophy, the Hexagoal, will be presented to the public at Trocadero, at 6.30pm local time on Monday, followed by an event featuring PSG players “on the bridges of Paris” at 10pm.
The aftermath of PSG’s first French triumph in a generation, however, has not been entirely without incident.
Some 21 supporters were questioned by police in the capital on Sunday night, and three were arrested for breaking windows, setting fire to property, and looting, according to French TV TF1.
In total, seven windows were smashed, and 16 law enforcement officers were injured.
In the PSG dressing-room in Lyon, meanwhile, things got heated between star striker and this season’s most prolific Ligue 1 goalscorer, Zlatan Ibrahimovic, and the club’s director of football, Leonardo.
French TV Canal Plus captured a short, aggressive exchange between the two, in Italian, amid scenes of celebration in the dressing-room.
The spat and the drama of the night appears to have taken their toll on Leonardo, with media reports later on Monday claiming he had been hospitalised.
The Brazilian is set to miss his team's celebrations in Paris tonight, which will see the players and staff parade on a boat along the river Seine through the heard of the French capital.