Tonight thousands of the undead will walk down Bardstown Road, participating in the seventh annual Louisville Zombie Attack. The Attack, which begins at 8:29 PM at the intersection of Eastern Parkway and Bardstown Road, started as a birthday gathering for John King and Lyndi Curtis, who now organize the event.Participants in the Attack will walk from Eastern Parkway to Bearno’s Pizza, a few blocks away, for a party with live music and awards for the best zombie costumes.The Louisville Zombie Attack will try for the Guinness World Record for most participants in a zombie walk, which is currently held by a Seattle zombie walk that drew 4,500 participants.