eventcalendar query

<?php
$mpdb = new wpdb('username', 'password', 'database', 'localhost');
$posttitles = $mpdb->get_col( "SELECT post_title FROM wp_posts WHERE post_type = 'tribe_events'" );

echo "The titles are ";

foreach ( $posttitles as $title )
{
    echo $title;
}
?>