Wagner is just 14 but shows a fair degree of professionalism on the video - as well as suitably fluffy hair and a great shirt.
The schoolboy from the central-eastern German state of Thuringia sings in the classic German Schlager style, extolling the virtues of the huge potato dumplings known as Klöße as the camera follows him around several typical regional scenarios.
He takes a walk through the woods to a countryside restaurant where he is filmed in the kitchen, lifting the lid off a pan of water while the chef throws in the dumplings.
His praise of the traditional German dish continues in various shots, sitting with a traditionally dressed couple eating their meal, and at the top of a church tower with the rolling hills of eastern Germany behind him.
More than 2.5 million people have already watched the song on YouTube, no doubt marvelling at lyrics such as "I am addicted to them, the dumplings are so important to me."
Now Fritz has landed a contract with Warner Music Group Germany and his song will be available on CD for those who want to hear it over and over again.
And while some might sneer at Schlager, it is a huge industry in Germany, in which Fritz Wagner will doubtless become a fixture.