As many predicted, the subject of the countdown ended up being the long-awaited release of the band's 2007 reunion concert at London's 02 Arena as both a live album and a spectacularly shot film on DVD and Blu-Ray. Dubbed Celebration Day, the film's release and subsequent press appearances will likely serve as a last hurrah for the legendary band, the film itself a document of Led Zeppelin's triumphant last ride.