Leicester finished 2015 level on points with Arsenal at the top of the Barclays Premier League after a goalless draw with Manchester City at the King Power Stadium.
The stalemate leaves Leicester second in the table behind the Gunners on goal difference, completing an amazing turnaround from 12 months ago when the Foxes were bottom of the standings.
After defeat at Anfield on Boxing Day, some questioned the title credentials of Claudio Ranieri's team but they silenced their critics with another superb performance on Tuesday night as they more than held their own against many people's favourites for the crown.
City stay third and without an away win in the league in six outings since a 1-0 victory at Crystal Palace on September 12.
The two teams had cancelled each other out, and Leicester had marshalled the threat of Raheem Sterling well, until the 18th minute. It was then that Sterling caught Bacary Sagna's ball over the top into space and teed-up Kevin De Bruyne, whose first-time shot from the edge of the area was parried away by Kasper Schmeichel.
It signalled the start of an assertive spell from City, only briefly interrupted when Aleksandar Kolarov got himself in a tangle and Riyad Mahrez curled a shot narrowly over the crossbar.
City got in down the right again before the half-hour mark following good link up play between Sagna and De Bruyne. Sterling took a pass on his chest and, losing his balance, hit a volley but Schmeichel got a hand on the ball and it spun past the far post.