Led Zeppelin will re-release two of their most legendary albums, Led Zeppelin IV and Houses of the Holy on October 28.

To promote the re-release of IV, the band shared a rare clip of Black Dog.  The rare version of the song, along with other previously unheard versions, will be included on the deluxe edition of the re-release.

Earlier this year, Led Zeppelin re-issued their first three albums.  Eventually, the band plans on re-releasing their entire catalog.

Led Zeppelin IV (technically untitled) was released in 1971.  It features classics like Stairway to HeavenRock & RollBlack Dog, and When the Levee Breaks.  It is the band's best selling album, with 37 million units sold worldwide.  It has sold more copies in the United States than any other album except for Michael Jackson's Thriller.

Houses of the Holy, released in 1973, went platinum 11 times.  It features classics like The Song Remains the SameThe Rain Song, and Over the Hills and Far Away.



Photo via CCM&E Archive