Place the code bellow inside your theme’s function.php file. Don’t forget to change the “TwitterProfileName” with your twitter profile name.

function parse_feed($feed) {
    $stepOne = explode("<content type=\"html\">", $feed);
    $stepTwo = explode("</content>", $stepOne[1]);
    $tweet = $stepTwo[0];
    $tweet = str_replace("&lt;", "<", $tweet);
    $tweet = str_replace("&gt;", ">", $tweet);
    return $tweet;
}

function getTweet(){
$feed = "http://search.twitter.com/search.atom?q=from:TwitterProfileName&rpp=1";
$twitterFeed = file_get_contents($feed);
echo parse_feed($twitterFeed);
}

Now wherever you like to show the twitter status just call the getTweet() function.

jQuery

$.getJSON("http://twitter.com/statuses/user_timeline/username.json?callback=?", function(data) {
     $("#theIdOfTheElement").html(data[0].text);
});

Change “#theIdOfTheElement” with the ID of the element you want to show the twitter status in.