A clip has gone viral of the musician, who is decked out in a classic Rudi Voller Germany shirt, performing in front of hundreds.
The man is playing a version of the classic Samba De Janeiro song – and it certainly hit the back of the net.
Hordes of German fans, who appeared to be celebrating after their draw with Switzerland, soon joined in.
And as more and more people saw the fantastic scenes on social media of the huge group dancing and singing along, every one seemed to be in agreement that only football could bring this happiness to people.
One response read: “No other sport like it.”
Another said: “Now that is a party.”
“We got football back,” claimed another fan on X.
A fourth said: “What an atmosphere. Incredible.”
While a fifth simply used one word to sum the scene, writing: “Brilliant!”
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Niclas Fullkrug came off the bench on Sunday to earn Euro 2024 host nation Germany a 1-1 draw with Switzerland.
That maintained their unbeaten start to the tournament and ensured they claimed top spot in Group A.
By winning Group A, Germany will now face the team that finishes second in England’s group on Saturday.
The Swiss have gone through to the last 16 as runners-up.
Meanwhile, Scotland were dumped out of the tournament as they conceded a late goal to Hungary.
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Kevin Csoboth’s 100th-minute winner finished Group A in third and that they still have a chance of going through as one of the four best third-placed teams.
But Steve Clarke’s Scotland are heading home after they came rock bottom with just a point from their three group games.