image: Premiere Prep

While Queen + Adam Lambert get set to start their tour on Thursday in Chicago, the original Queen, featuring Freddie Mercury and John Deacon, are getting set to release a live recording from four decades ago.

Live at the Rainbow '74 captures the band on March 31st, 1974 at The Rainbow in London, just after the release of their second album, Queen 2, as well as in November of that same year in support of their Sheer Heart Attack album. The show in March was recorded with the intent of releasing it as their third album, but they opted to go back in the studio to record Sheer Heart Attack. Among the songs on this release are more a dozen tracks never previously released on any official Queen live album. It will be available on CD, vinyl, DVD and Blu-Ray, and digitally. Highlights include "Killer Queen," "Keep Yourself Alive," "Seven Seas of Rhye," "Stone Cold Crazy" and "God Save the Queen." It will be out on September 9th.

Brian May says the Adam Lambert tour is coming together well. He says, "I don't think we ever worked so hard on a show. The adrenaline is flowing... It's an amazing production. The veil comes off in Chicago!"