Led Zeppelin

The thunderous backbone to Led Zeppelin’s sound went silent when John Bonham was found dead Sept. 25, 1980, ending the band as an active unit.

Pop star delivers “Black Dog” and “Comfortably Numb” at radio festival.

Late singer recalled 1969 performance to 400 people, and 1978 event to 30,000 in previously unpublished interview.

Singers recall difficult days of hoping band work would supply “square meal” in TV clip.

Rock = speed.

Page: ‘When you talk about a band as a collaborative musical unit, we were the best.’

The U.S. is now getting involved.

The singer hasn't tackled the classic since the '90s.

The social-media site briefly banned 'House of the Holy' cover image for violating its terms of use.[UPDATE]

The 1973 sleeve was designed by Aubrey Powell of Hipgnosis.