A goal from Leonardo Ulloa in the last minute sealed a dramatic 1-0 victory for Leicester against stubborn Norwich.
The breakthrough for the Foxes came late on when Marc Albrighton found Riyad Mahrez down the right-hand side, Mahrez then put the ball in and found the Leicester striker, who had only come on 10 minutes earlier, to tap home from close range at the far post.
Up until that point it had been a game of limited chances for both sides and it was the visitors who actually had the best one of the first half when Cameron Jerome glanced a header wide from six yards out.
The second half brought a few more chances with John Ruddy making two good saves within 10 minutes when he first denied Jamie Vardy with a save from a free-kick and then another stop to deny Albrighton.
Norwich almost took the lead with six minutes remaining when Nathan Redmond produced a brilliant strike from distance that had Kasper Schmeichel beaten, but ended up just wide of the post.
Leicester rarely worked Ruddy and struggled to break down a Norwich side that packed the midfield and looked to counter-attack, but in the end they failed to hold on when Ulloa grabbed a very late goal to spark scenes of wild celebrations at the King Power Stadium.