So what are you waiting for?
While Southgate's waistcoat accumulates national attention, another item worn by the Three Lions boss has been credited with bringing luck to the team in Russian Federation.
Southgate was a key player for England at Euro 96 but saw his penalty saved in the shoot-out at the end of the semi-final against Germany which saw them knocked out.
Croatia will provide stiffer opposition than the likes of Colombia and Sweden, but there's reason to believe England will pass this test as well, reaching their first World Cup final in 52 years. The victor advances to Sunday's final against France or Belgium, which also will be at Luzkniki Stadium. Either football is one step closer to "coming home" for England, or, as the first verse tells it, "Everyone seems to know the score, they've seen it all before/ They just know, they're so sure/ That England's gonna throw it away, gonna blow it away".
He said: "We are really proud of the support we have received". It's since become, for better or worse, intrinsically tied to England's football team.
England are now into the semifinals of the World Cup, putting them within two games of pulling off the country's greatest sporting triumph since 1966.
However, through my crash course in the other* football, I keep finding more and more striking parallels in the trajectory of each team and their supporters. We want this to be a family-friendly occasion and a chance for England fans young and old to show the positive spirit of football to the country and the world.
The former Sunderland man has proved at the World Cup that he can play for most top European sides in that position.
The civic buildings of Leeds Town Hall and Leeds Civic Hall will also be lit up red and white on both Tuesday and Wednesday night in order to cheer on England, alongside proudly flying a St George's flag.
Asked what is was all about, a slightly bemused Southgate said: "That's exactly what I asked our fitness coach a well, 'What is that all about?'".