The Foxes destroyed a sorry Southampton 9-0 at St Mary's, equalling the biggest win in the history of the competition.
It was also a record win away from home, as Brenden Rodgers' side wrote themselves in to the history books.
But were the players actually aware they were about to do something amazing? Well, when the scoreline got to 6-0, apparently so.
After the match, Jamie Vardy told Sky Sports that Jonny Evans came running over to his teammates to tell everyone they were on for a new record.
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"We actually found out at 6-0 when Jonny Evans came sprinting over, saying if we carry on doing what we're doing we can get the record," the striker said.
"Then we've gone all the way to the end and managed to do it. It was a great performance for the lads and I'm buzzing for the fans."
Brilliant. Footballers often come out and say that individual stats and records don't mean anything - but to Leicester, chasing history was clearly at the forefront of everyone's minds.
With their record-breaking win, the Foxes move up to second in the Premier League, ahead of Manchester City.
No one is quite suggesting that we could see a repeat of the title winners in 2015/16, but this side can certainly make the top four.
Post-match, Vardy was also asked about how similar the current Leicester team is to the one he played in and suggested that this season, they can hurt anyone.
"I think Football-wise it's different. There was a lot of counter-attacking when we won the league. You can see from tonight that we can attack, keep the ball really well and play at pace.
"We can hurt anyone."
What a performance and what a night it was for Leicester on Friday.News Now - Sport News