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In page Black Dog (song):

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"Black Dog" became a staple and fan favourite of Led Zeppelin's live concert performances. It was first played live at Belfast's Ulster Hall on 5 March 1971, a concert which also featured the first ever live performance of "Stairway to Heaven".[1] It was retained for each subsequent concert tour until 1973. In 1975 it was used as an encore medley with "Whole Lotta Love", but was hardly used on the band's 1977 US concert tour. It was recalled to the set for the Knebworth Festival 1979 and the 1980 Tour of Europe. For these final 1980 performances, Page introduced the song from stage.[1]