During their June 13 show at the Emirates Old Trafford in Manchester, England, Foo Fighters performed an unreleased song titled “Unconditional.” You can see fan-filmed footage of that below. A representative for the band told Consequence the following about the track:
“[It was] partially written and demo’d during home studio sessions years ago — but ultimately left unfinished. The band’s rediscovery of ‘Unconditional’ happened in true spontaneous Foo Fighters fashion: The song came up in conversation during rehearsals for the UK tour, and all it took was one run-through — The decision was made instantly to share it with everyone in the same way – live.”
Metal Anarchy 