Foo Fighters were joined onstage by members of Led Zeppelin as they wrapped up their second night at Wembley Stadium.
Guitarist Jimmy Page and bassist John Paul Jones teamed up with Dave Grohl and his band for Zeppelin classics Rock and Roll and Ramble On.
The collaboration was Zeppelin's first appearance since the band played a one-off gig in December 2007.
It also came eight months after Queen joined Foo Fighters onstage in London.
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Introducing the pair onstage Grohl said: "Tonight playing here at Wembley Stadium is an honour and if we didn't take advantage of this opportunity we'd be crazy.
He went on: "We knew from the beginning this wasn't going to be another outdoor show, we have been planning this for six months so we would like to welcome Jimmy Page and John Paul Jones onstage."
The Foo Fighters frontman took over stick duties while drummer Taylor Hawkins sang vocals on Rock And Roll for Zeppelin's first appearance since their London 02 Arena gig in December 2007.
Grohl then swapped places with Hawkins for a crowd pleasing rendition of Ramble On.
'Something special'
The collaboration came just eight months after members of Queen joined the Foo Fighters onstage at the 02 for a cover of 39.
Earlier in the night Grohl hinted that the band had something special planned when he told the crowd: "We are going to do something special tonight that we have never done before.
"Tonight this will be the show we are talking about for the next 20 years."
Like their previous performance on 6 June the band played on a rotating stage and a huge catwalk which Grohl took advantage of during debut album track This Is A Call when he strutted the whole stage for an extended guitar solo.
Grohl later introduced four extra members onstage for an acoustic section which featured the likes of Skin And Bones, Marigold and Big Me, which finally gave fans at the back of the stadium chance to see the band for the first time.
During My Hero the whole of the stadium belted out the words which Grohl later acknowledged as he joked: "86,000 back up singers, nice, perfect pitch."
As the band wrapped up the show with Best Of You he was visibly overcome with emotion as he told the crowd: "Welcome to the greatest day of my whole entire life.
"At this point there is only thing left to do, sing a song together as loud as you can."
Setlist:
Encore:
~RS~q~RS~~RS~z~RS~41~RS~)