It was shot during their Las Vegas residency earlier this year and marked the first time ever they'd played any of their records from beginning to end. Frontman Joe Elliott says: "We've been asked for many years if we'd ever do it, and the answer was always 'no' because we'd be out promoting a new album.

"Then in March and April 2013, when we had no new music to promote, we had a chance to revisit arguably our most important album. It was an easy decision to make.