[Plugin: Facebook Comments] does this plugin work with orderby' => 'comment_count'

<?php
	$pp = new WP_Query(array(
		'post_type' => array( 'post','episode','projects' ),
		'orderby' => 'comment_count',
		'posts_per_page' => 4
		));

		while ($pp->have_posts()) : $pp->the_post();
?>

Will Facebook Comments work with arranging my posts based on comment count?