Led Zeppelin’s September 4, 1970 concert at the LA Forum is one of the group’s most famous concerts, thanks to the Live on Blueberry Hill LP that is widely credited as one of the first rock bootlegs.

On Saturday, Dec. 10, music giants Led Zeppelin will stream their concert film, Celebration Day, for free on YouTube. The performance captures the favored rockers paying tribute to the life of music ...