public function getGuestList()
    {
        $reservationClass = Reservation::singleton()->getClassName();
        $attendeeClass = Attendee::singleton()->getClassName();
        return Attendee::get()
            ->leftJoin($reservationClass, "`$attendeeClass`.`ReservationID` = `$reservationClass`.`ID`")
            ->filter(array(
                'EventID' => $this->owner->ID
            ))
            ->filterAny(array(
                'ReservationID' => 0,
                'Status' => Reservation::STATUS_PAID
            ));
    }