Regardless of what happens this evening, and in Sunday's final if you dare to dream, the story of Southgate's latest World Cup is sure to be well documented in the weeks, months and years after the tournament ends.
Southgate - whose stock has risen as England have impressed in Russian Federation - has been wearing a trademark waistcoat throughout the World Cup. First win on penalties in the World Cup.
And school children have been sending their adorable good luck messages to their favourite players.
"They're already heroes, its just about whether they turn into legends", said 32-year-old Dan Woodbury as he waited for the 1800 GMT kick-off in The George pub at London Bridge.
"We've won after scoring in the last minute, won after conceding in the last minute, come through extra time and penalties".
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"We keep looking to break the barriers down. It's been an enjoyable journey, and we want to keep it going". Our supporters have had a long time of suffering in terms of football.
"Our country's been through some hard moments in terms of unity and football has the power to do that".
The infectious song, with its chorus "It's coming home, it's coming home, it's coming, football's coming home", was written by pop star Ian Broadie and comedians David Baddiel and Frank Skinner ahead of England's hosting of Euro 96.
What's more, a quick browse on the World Cup collection section on the official M&S website, where the Southgate-style waistcoat is priced at £65, shows that it's only available in XXL online. But while the tournament was a huge success and is fondly remembered by most, it ended in misery for Southgate when he missed the decisive penalty in the shootout against rivals Germany.
All we can say is that for two of these four sides that answer will come sooner rather than later, as today (*producer jump zoom*): one of these nations is going home. "So for me it has a slightly different feel", Southgate told reporters on Tuesday, before adding: "But it's nice to hear people are listening to it again".