Mbappe has probably never celebrated a routine finish with such vigour, the Paris Saint-Germain winger screaming in delight after smashing his record-breaking shot home to put his team up by two goals two minutes into stoppage time.
It was a strike of great personal significance for the 24-year-old, one that made him PSG's all-time top goalscorer in all competitions as he further etched his name into the Ligue 1 history books.
Not long after, PSG honoured him with fireworks and a trophy ceremony on the field - all the decadence one would expect from the Parc des Princes.
His goal was rather handy for Saturday's purposes, too, as it sealed a 4-2 victory that at times looked like it might escape PSG.
Lionel Messi got the Parisians going with a neat finish from close range for a 1-0 lead. Their second came a few minutes later, as Jaouen Hadjam bundled the ball into his own net.
But they never looked secure in their advantage. Ludovic Blas got the first for Nantes, beating Gianluigi Donnarumma at his near post off a sliced cross. The equaliser from Nantes followed shortly after, Ignatius Ganago deflecting the ball in from a corner.
PSG reclaimed the lead in the second half through a Danilo Pereira header. Mbappe added a second in stoppage time, an emphatic finish from close range to break the PSG all-time goalscoring record and secure three important points.
GOAL breaks down the winners & losers from Parc des Princes...