"Look at him, he's beautiful, I love you!" exclaimed Bert le Clos in an interview with the BBC, just moments after watching his son Chad win the gold medal in the men's 200m butterfly final in London on Monday.
Within hours of the interview, the video had gone viral, and the proud father of South Africa's newest hero, had become a global sensation.
His voice hoarse from cheering his son on and overcome with emotion, Bert touched the hearts of the global audience and before long he was trending on Twitter, along with his son of course.
Take a look at the video below: