Led Zeppelin - Achiles Last Stand (Knebworth 1979)

It was a tough act for Led Zeppelin to follow up Physical Graffiti, but they attempted to do so with Presence in 1976. While the album isn't a favorite of many fans it did produce one of the band's best songs in "Achilles Last Stand." The site for this video is the Knebworth Festival in 1979.

Led Zeppelin - The Rain Song (Earls Court 1975)

Led Zeppelin performs "The Rain Song" at Earls Court Arena in London in May 1975. When the song was done in concert it followed "The Song Remains the Same." Led Zeppelin initially booked three concerts at Earls Court Arena, but due to strong demand the group added two additional shows. If you want to know more about the Earls Court concerts, Wikipedia has a page on them here.

Led Zeppelin - Something Else

You will never hear this song on the radio, but it's a great one. "Something Else" is an Eddie Cochran/Sharon Sheeley song that Led Zeppelin covered and is on the BBC Sessions album which came out in 1997. Seemingly all of the British bands covered a Cochran song; the Who most notably did "Summertime Blues," while "Something Else" was performed by many bands including The Beatles and the Rolling Stones.

The first video is the audio from the BBC Sessions. The second video is of a concert at the Royal Albert Hall.