The French treble winners had Willian Pacho and Lucas Hernandez sent off in the final stages but managed to oust the German giants in Atlanta. Bundesliga champions Bayern, who lost Jamal Musiala just before half-time with a horror ankle injury, shared an intense and even battle with the Parisians.
Bayern had won their last four matches straight against PSG, including a 1-0 Champions League victory last November, before Luis Enrique's side hit their peak. Players and nearly 67,000 spectators observed a minute of silence in honour of Liverpool forward Diogo Jota and his brother Andre Silva, who tragically died in a car crash on Thursday.
It was an emotional moment, especially for a PSG side with five Portuguese players in the squad, including starters Vitinha, Joao Neves and Nuno Mendes.