Display featured image before single entry title in Genesis

functions.php

<?php
//* Do NOT include the opening php tag

//* Display featured image before single entry title.
add_action( 'genesis_before_entry', 'featured_post_image', 8 );
function featured_post_image() {
  if ( ! is_singular( 'post' ) )  return;
	the_post_thumbnail('large');
}