There's not much us Brits love more than an underdog story - and a sporting underdog is perhaps our favourite.
The team are just one win away from winning it all after narrowly avoiding relegation last season, making Sunday's clash with Manchester United a defining moment in Britain's entire sporting history.
On Friday, the hashtag #BackTheBlues trended for hours on Twitter as locals shared their photos of support for the Foxes, with even Labour MP Liz Kendall (@leicesterliz) and the city's mayor getting involved...
But it wasn't just Leicester residents supporting the Blues - those further afield also showed their love for the team...
Even Hollywood star Tom Hanks admitted that he put £100 on Leicester to win.
Claudio Ranieri's men will clash with United at Old Trafford, kicking off at 2.05pm.
A win against the Red Devils would put them 10 points ahead of their nearest rivals, Tottenham.
But even if they draw with United, they could still go on to win the title - this would mean that Spurs would need to go on to beat Chelsea on Monday.
If Spurs beat or draw with Chelsea, the fight for the title will continue the following weekend.