It's hard to know what would have happened to the careers of Kiss, Peter Frampton, Bob Seger and Cheap Trick had they not released killer live albums back in the 1970s. None of those acts had quite managed to capture the magic of their stage shows in the recording studio, and they were all facing oblivion until a single live album transformed their lives forever. The Seventies was the era of the live album, a time when it was practically mandatory for rock bands to release at least one great concert recording. It was also a time when bootlegs were flooding the market and artists felt the need to compete. We asked our readers to vote on their favorite live albums of the 1970s. Click through to see the results.