The wait is over—Harry and the Potters will be returning to 'Hogwart' Square.

To celebrate the release of "Harry Potter and the Deathly Hallows, Part 2"—the final installment of the Harry Potter movie series based on the popular book series by J.K. Rowling—the Harvard Square Business Association is throwing "The Best Harry Potter Party EVER, Part 2: Smackdown in Hogwart Square."

In a rock battle between Harry and the Potters and Draco and the Malfoys—two bands that play wizard-themed songs—Harvard Square will once again be transformed into a world of wizarding magic as the free concert takes over Brattle Street on July 29 at 7 p.m.

Four years ago, 40,000 Harry Potter fans from the Boston area packed Harvard Yard's Tercentenary Theatre to count down the release of the seventh Harry Potter book "Harry Potter and the Deathly Hallows." During what the Harvard Square Business Association called the "Best Harry Potter Party EVER," The Hungarian Horntails, Draco and the Malfoys, and Harry and the Potters rocked the steps of Memorial Church.

"It was magical," said Denise A. Jillson, executive director of the Harvard Square Business Association, hoping for a repeat of their success in this year's Part 2.