Before Led Zeppelin became the hallowed hard-rock pioneers known for epics such as "Stairway to Heaven" and "Kashmir," the young, hungry British rockers simply spewed out killer albums and played sledgehammer versions of them onstage. The band's opening trio, 1969's "Led Zeppelin" and "Led Zeppelin II" and 1970's "Led Zeppelin III," get luxurious reissue treatment on Tuesday, via CD masters, with a 70-page picture book for affluent fans, and corresponding discs of rarities and live tracks for each album. Here are 10 things you didn't know about the set, curated by guitarist Jimmy Page.
