Two goals in the first half see Crystal Palace end Leicester City's 100% home record at the King Power Stadium.
Leicester City have lost their 100% home record this season by falling to managerless Crystal Palace this afternoon.
David Nugent and Anthony Knockaert warmed the palms of Julian Speroni early on but it was visiting Palace who took the lead.
Kasper Schmeichel failed to hold on to an Owen Garvan corner and Damien Delaney found the roof of the net for his third goal in four games.
Delaney's defensive partner Peter Ramage doubled the advantage soon after with a header as the Foxes were again undone from a corner.
Nugent and Luke Varney went close after the interval as Leicester pushed for a way back into the match.
However, they were continuously denied by Palace, who have now gone 10 games without defeat.
Leicester did get a goal back as full-time approached through Andy King but it was too little too late.
The Foxes have been replaced by Cardiff at the top of the table while Palace are up to fourth.
Half-Time Report: Palace upsetting Leicester >