You can add the following jQuery code anywhere you want on the site (i.e. Sidebar, footer, etc.) Just remember to replace and specify which feed you'll be recalling.

$(document).ready(function(){
       $.ajax({
               type: "GET",
               url: "http://feeds.feedburner.com/examplefeed",
               success: Function(data){
                       $("#date").text($(data).find("item:first>pubDate:first").text());
                       $("#title").html("link:first").text()+"'>"+$(data).find("item:first>title:first").text()+"");
                       $("#description").html($(data).find("item:first>description:first").text());
               }